WordPress Core is vulnerable to Stored Cross-Site Scripting via user display names in the Avatar block in various versions up to 6.5.2 due to insufficient output escaping on the display name. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. In addition, it also makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that have the comment block present and display the comment author's avatar.

Cross-site scripting (XSS) vulnerability in xml/media-rss.php in the NextGEN Gallery plugin before 1.5.2 for WordPress allows remote attackers to inject arbitrary web script or HTML via the mode parameter.

Before version 4.8.2, WordPress was vulnerable to cross-site scripting in oEmbed discovery.

The WP Google Review Slider WordPress plugin before 13.6 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

Cross-site scripting vulnerability in WordPress versions prior to 6.0.3 allows a remote unauthenticated attacker to inject an arbitrary script. The developer also provides new patched releases for all versions since 3.7.

Cross-site scripting (XSS) vulnerability in Roy Tanck tagcloud.swf, as used in the WP-Cumulus plugin before 1.23 for WordPress and the Joomulus module 2.0 and earlier for Joomla!, allows remote attackers to inject arbitrary web script or HTML via the tagcloud parameter in a tags action. Cross-site scripting (XSS) vulnerability in tagcloud.swf in the WP-Cumulus Plug-in before 1.23 for WordPress allows remote attackers to inject arbitrary web script or HTML via the tagcloud parameter.

The Real Media Library: Media Library Folder & File Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the image title and alt text in all versions up to, and including, 4.22.11 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author access and higher, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Cross-site scripting (XSS) vulnerability in wp-cumulus.php in the WP-Cumulus Plug-in before 1.22 for WordPress allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

The Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via a user's display name autofilled into forms in all versions up to, and including, 1.15.24 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Cross-site scripting (XSS) vulnerability in wp-admin/press-this.php in WordPress before 2.8.6 allows remote authenticated users to inject arbitrary web script or HTML via the s parameter (aka the selection variable).

Cross-site scripting (XSS) vulnerability in the administrator interface in WordPress before 2.8.2 allows remote attackers to inject arbitrary web script or HTML via a comment author URL.

The Grid Shortcodes WordPress plugin before 1.1.1 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks

Cross-site scripting (XSS) vulnerability in the choose_primary_blog function in wp-includes/wpmu-functions.php in WordPress MU (WPMU) before 2.7 allows remote attackers to inject arbitrary web script or HTML via the HTTP Host header.

The Easy Social Feed WordPress plugin before 6.5.6 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admin

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Justin Tadlock Unique allows Stored XSS.This issue affects Unique: from n/a through 0.3.0.

Cross-site scripting (XSS) vulnerability in the self_link function in in the RSS Feed Generator (wp-includes/feed.php) for WordPress before 2.6.5 allows remote attackers to inject arbitrary web script or HTML via the Host header (HTTP_HOST variable).

Cross-site scripting (XSS) vulnerability in wp-admin/wp-blogs.php in Wordpress MU (WPMU) before 2.6 allows remote attackers to inject arbitrary web script or HTML via the (1) s and (2) ip_address parameters.

Cross-site scripting (XSS) vulnerability in wpcommentremix.php in WP Comment Remix plugin before 1.4.4 for WordPress allows remote attackers to inject arbitrary web script or HTML via the (1) replytotext, (2) quotetext, (3) originallypostedby, (4) sep, (5) maxtags, (6) tagsep, (7) tagheadersep, (8) taglabel, and (9) tagheaderlabel parameters.

Cross-site scripting (XSS) vulnerability in the log feature in the John Godley Search Unleashed 0.2.10 plugin for WordPress allows remote attackers to inject arbitrary web script or HTML via the s parameter, which is not properly handled when the administrator views the log file.

Multiple cross-site scripting (XSS) vulnerabilities in the Sniplets 1.1.2 and 1.2.2 plugin for WordPress allow remote attackers to inject arbitrary web script or HTML via the (1) text parameter to (a) warning.php, (b) notice.php, and (c) inset.php in view/sniplets/, and possibly (d) modules/execute.php; the (2) url parameter to (e) view/admin/submenu.php; and the (3) page parameter to (f) view/admin/pager.php.

Multiple cross-site scripting (XSS) vulnerabilities in cryptographp/admin.php in the Cryptographp 1.2 and earlier plugin for WordPress allow remote attackers to inject arbitrary web script or HTML via the (1) cryptwidth, (2) cryptheight, (3) bgimg, (4) charR, (5) charG, (6) charB, (7) charclear, (8) tfont, (9) charel, (10) charelc, (11) charelv, (12) charnbmin, (13) charnbmax, (14) charspace, (15) charsizemin, (16) charsizemax, (17) charanglemax, (18) noisepxmin, (19) noisepxmax, (20) noiselinemin, (21) noiselinemax, (22) nbcirclemin, (23) nbcirclemax, or (24) brushsize parameter to wp-admin/options-general.php.

Cross-site scripting (XSS) vulnerability in wp-db-backup.php in WordPress 2.0.11 and earlier, and possibly 2.1.x through 2.3.x, allows remote attackers to inject arbitrary web script or HTML via the backup parameter in a wp-db-backup.php action to wp-admin/edit.php.

Multiple cross-site scripting (XSS) vulnerabilities in captcha\captcha.php in the Captcha! 2.5d and earlier plugin for WordPress allow remote attackers to inject arbitrary web script or HTML via the (1) captcha_ttffolder, (2) captcha_numchars, (3) captcha_ttfrange, or (4) captcha_secret parameter.

Multiple cross-site scripting (XSS) vulnerabilities in admin_panel.php in the Simon Elvery WP-Footnotes 2.2 plugin for WordPress allow remote attackers to inject arbitrary web script or HTML via the (1) wp_footnotes_current_settings[priority], (2) wp_footnotes_current_settings[style_rules], (3) wp_footnotes_current_settings[pre_footnotes], and (4) wp_footnotes_current_settings[post_footnotes] parameters.

Multiple cross-site request forgery (CSRF) vulnerabilities in math-comment-spam-protection.php in the Math Comment Spam Protection 2.1 and earlier plugin for WordPress allow remote attackers to perform actions as administrators via the (1) mcsp_opt_msg_no_answer or (2) mcsp_opt_msg_wrong_answer parameter to wp-admin/options-general.php.

In affected versions of WordPress, a vulnerability in the stats() method of class-wp-object-cache.php can be exploited to execute cross-site scripting (XSS) attacks. This has been patched in version 5.4.1, along with all the previously affected versions via a minor release (5.3.3, 5.2.6, 5.1.5, 5.0.9, 4.9.14, 4.8.13, 4.7.17, 4.6.18, 4.5.21, 4.4.22, 4.3.23, 4.2.27, 4.1.30, 4.0.30, 3.9.31, 3.8.33, 3.7.33).

In affected versions of WordPress, a special payload can be crafted that can lead to scripts getting executed within the search block of the block editor. This requires an authenticated user with the ability to add content. This has been patched in version 5.4.1, along with all the previously affected versions via a minor release (5.3.3, 5.2.6, 5.1.5, 5.0.9, 4.9.14, 4.8.13, 4.7.17, 4.6.18, 4.5.21, 4.4.22, 4.3.23, 4.2.27, 4.1.30, 4.0.30, 3.9.31, 3.8.33, 3.7.33).

In affected versions of WordPress, files with a specially crafted name when uploaded to the Media section can lead to script execution upon accessing the file. This requires an authenticated user with privileges to upload files. This has been patched in version 5.4.1, along with all the previously affected versions via a minor release (5.3.3, 5.2.6, 5.1.5, 5.0.9, 4.9.14, 4.8.13, 4.7.17, 4.6.18, 4.5.21, 4.4.22, 4.3.23, 4.2.27, 4.1.30, 4.0.30, 3.9.31, 3.8.33, 3.7.33).

In affected versions of WordPress, a cross-site scripting (XSS) vulnerability in the navigation section of Customizer allows JavaScript code to be executed. Exploitation requires an authenticated user. This has been patched in version 5.4.1, along with all the previously affected versions via a minor release (5.3.3, 5.2.6, 5.1.5, 5.0.9, 4.9.14, 4.8.13, 4.7.17, 4.6.18, 4.5.21, 4.4.22, 4.3.23, 4.2.27, 4.1.30, 4.0.30, 3.9.31, 3.8.33, 3.7.33).

WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. ### Impact The issue allows an authenticated but low-privileged user (like contributor/author) to execute XSS in the editor. This bypasses the restrictions imposed on users who do not have the permission to post `unfiltered_html`. ### Patches This has been patched in WordPress 5.8, and will be pushed to older versions via minor releases (automatic updates). It's strongly recommended that you keep auto-updates enabled to receive the fix. ### References https://wordpress.org/news/category/releases/ https://hackerone.com/reports/1142140 ### For more information If you have any questions or comments about this advisory: * Open an issue in [HackerOne](https://hackerone.com/wordpress)

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Marco Gasi Language Switcher for Transposh allows Reflected XSS.This issue affects Language Switcher for Transposh: from n/a through 1.5.9.

Cross-site scripting (XSS) vulnerability in the Temporary Uploads editing functionality (wp-admin/includes/upload.php) in WordPress 2.2.1, allows remote attackers to inject arbitrary web script or HTML via the style parameter to wp-admin/upload.php.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Cusmin AGCA - Absolutely Glamorous Custom Admin (WordPress plugin) allows Stored XSS.This issue affects AGCA - Absolutely Glamorous Custom Admin (WordPress plugin): from n/a through 6.8.

Cross-site scripting (XSS) vulnerability in an mt import in wp-admin/admin.php in WordPress 2.1.2 allows remote authenticated administrators to inject arbitrary web script or HTML via the demo parameter. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information. NOTE: another researcher disputes this issue, stating that this is legitimate functionality for administrators. However, it has been patched by at least one vendor

WordPress is a free and open-source content management system written in PHP and paired with a MariaDB database. Low-privileged authenticated users (like author) in WordPress core are able to execute JavaScript/perform stored XSS attack, which can affect high-privileged users. This has been patched in WordPress version 5.8.3. Older affected versions are also fixed via security release, that go back till 3.7.37. We strongly recommend that you keep auto-updates enabled. There are no known workarounds for this issue.

Cross-site scripting (XSS) vulnerability in wp-includes/wp-db.php in WordPress before 4.2.2 allows remote attackers to inject arbitrary web script or HTML via a long comment that is improperly stored because of limitations on the MySQL TEXT data type. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-3440.

In wp-includes/formatting.php in WordPress 3.7 to 5.3.0, the function wp_targeted_link_rel() can be used in a particular way to result in a stored cross-site scripting (XSS) vulnerability. This has been patched in WordPress 5.3.1, along with all the previous WordPress versions from 3.7 to 5.3 via a minor release.

WordPress before 5.2.4 is vulnerable to a stored XSS attack to inject JavaScript into STYLE elements.

In WordPress before 5.3.1, authenticated users with lower privileges (like contributors) can inject JavaScript code in the block editor, which is executed within the dashboard. It can lead to an admin opening the affected post in the editor leading to XSS.

Cross-site scripting (XSS) vulnerability in WordPress before 4.2.3 allows remote authenticated users to inject arbitrary web script or HTML by leveraging the Author or Contributor role to place a crafted shortcode inside an HTML element, related to wp-includes/kses.php and wp-includes/shortcodes.php.

WordPress before 5.2.3 allows XSS in media uploads because wp_ajax_upload_attachment is mishandled.

Cross-site scripting (XSS) vulnerability in the form function in the WP_Nav_Menu_Widget class in wp-includes/default-widgets.php in WordPress before 4.2.4 allows remote attackers to inject arbitrary web script or HTML via a widget title.

Auth. Stored (contributor+) Cross-Site Scripting (XSS) vulnerability in WordPress core 6.3 through 6.3.1, from 6.2 through 6.2.2, from 6.1 through 6.1.3, from 6.0 through 6.0.5, from 5.9 through 5.9.7 and Gutenberg plugin <= 16.8.0 versions.

The WP Video Lightbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘width’ parameter in all versions up to, and including, 1.9.10 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions the widgets editor introduced in WordPress 5.8 beta 1 has improper handling of HTML input in the Custom HTML feature. This leads to stored XSS in the custom HTML widget. This has been patched in WordPress 5.8. It was only present during the testing/beta phase of WordPress 5.8.

Cross-site scripting (XSS) vulnerability in WordPress before 4.3.1 allows remote attackers to inject arbitrary web script or HTML by leveraging the mishandling of unclosed HTML elements during processing of shortcode tags.

Cross-site scripting (XSS) vulnerability in the legacy theme preview implementation in wp-includes/theme.php in WordPress before 4.2.4 allows remote attackers to inject arbitrary web script or HTML via a crafted string.

Cross-site scripting (XSS) vulnerability in the refreshAdvancedAccessibilityOfItem function in wp-admin/js/nav-menu.js in WordPress before 4.2.4 allows remote attackers to inject arbitrary web script or HTML via an accessibility-helper title.

The ShopLentor – WooCommerce Builder for Elementor & Gutenberg +12 Modules – All in One Solution (formerly WooLentor) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the _id attribute in the Horizontal Product Filter in all versions up to, and including, 2.8.7 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The WP Recipe Maker plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's wprm-recipe-roundup-item shortcode in all versions up to, and including, 9.3.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.