In Joomla! 3.2.0 through 3.6.5 (fixed in 3.7.0), inadequate escaping of file and folder names leads to XSS vulnerabilities in the template manager component.

In Joomla! 3.2.0 through 3.6.5 (fixed in 3.7.0), inadequate filtering leads to XSS in the template manager component.

In Joomla! 1.5.0 through 3.6.5 (fixed in 3.7.0), inadequate filtering of specific HTML attributes leads to XSS vulnerabilities in various components.

In Joomla! 1.5.0 through 3.6.5 (fixed in 3.7.0), inadequate filtering of multibyte characters leads to XSS vulnerabilities in various components.

Multiple cross-site scripting (XSS) vulnerabilities in the ActiveHelper LiveHelp (com_activehelper_livehelp) component 2.0.3 for Joomla! allow remote attackers to inject arbitrary web script or HTML via (1) the DOMAINID parameter to server/cookies.php or (2) the SERVER parameter to server/index.php.

Cross-site scripting (XSS) vulnerability in the Facileforms (com_facileforms) component for Joomla! and Mambo allows remote attackers to inject arbitrary web script or HTML via the Itemid parameter to index.php.

Multiple cross-site scripting (XSS) vulnerabilities in the Webee Comments (com_webeecomment) component 1.1.1, 1.2, and 2.0 for Joomla! allow remote attackers to inject arbitrary web script or HTML via the (1) color, (2) img, or (3) url BBCode tags in unspecified vectors.

An issue was discovered in Joomla! 4.0.0 through 4.1.0. Inadequate content filtering leads to XSS vulnerabilities in various components.

Cross-site scripting (XSS) vulnerability in the Q-Personel (com_qpersonel) component 1.0.2 RC2 for Joomla! allows remote attackers to inject arbitrary web script or HTML via the personel_sira parameter in a sirala action to index.php.

Cross-site scripting (XSS) vulnerability in admin.jcomments.php in the JoomlaTune JComments (com_jcomments) component 2.1.0.0 for Joomla! allows remote authenticated users to inject arbitrary web script or HTML via the name parameter to index.php.

An issue was discovered in Joomla! 4.0.0 through 4.1.0. Possible XSS atack vector through SVG embedding in com_media.

Multiple cross-site scripting (XSS) vulnerabilities in the JoomlaSeller JS Calendar (com_jscalendar) component 1.5.1 and 1.5.4 for Joomla! allow remote attackers to inject arbitrary web script or HTML via the (1) month and (2) year parameters in a jscalendar action to index.php. NOTE: some of these details are obtained from third party information.

Cross-site scripting (XSS) vulnerability in modules/mod_yj_whois.php in the YJ Whois component 1.0x and 1.5.x for Joomla! allows remote attackers to inject arbitrary web script or HTML via the domain parameter to index.php. NOTE: some of these details are obtained from third party information.

Cross-site scripting (XSS) vulnerability in the You!Hostit! template 1.0.1 for Joomla! allows remote attackers to inject arbitrary web script or HTML via the created_by_alias parameter in index.php.

Multiple cross-site scripting (XSS) vulnerabilities in index.php in the ProofReader (com_proofreader) component 1.0 RC9 and earlier for Joomla! allow remote attackers to inject arbitrary web script or HTML via the URI, which is not properly handled in (1) 404 or (2) error pages.

Cross-site scripting (XSS) vulnerability in the Yannick Gaultier sh404SEF component before 2.1.8.777 for Joomla! allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Cross-site scripting (XSS) vulnerability in the Restaurant Guide (com_restaurantguide) component 1.0.0 for Joomla! allows remote attackers to inject arbitrary web script or HTML by placing it after a > (greater than) character.

Cross-site scripting (XSS) vulnerability in the Hotel Booking Reservation System (aka HBS or com_hbssearch) component for Joomla! allows remote attackers to inject arbitrary web script or HTML via the adult parameter in a showhoteldetails action to index.php.

Multiple cross-site scripting (XSS) vulnerabilities in the RSComments (com_rscomments) component 1.0.0 Rev 2 for Joomla! allow remote attackers to inject arbitrary web script or HTML via the (1) website and (2) name parameters to index.php.

Cross-site scripting (XSS) vulnerability in Joomla! 1.5.x through 1.5.10 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors related to database output and the frontend administrative panel.

Cross-site scripting (XSS) vulnerability in the Marketplace (com_marketplace) component 1.2 for Joomla! allows remote attackers to inject arbitrary web script or HTML via the catid parameter in a show_category action to index.php.

Cross-site scripting (XSS) vulnerability in the JA_Purity template for Joomla! 1.5.x through 1.5.10 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Cross-site scripting (XSS) vulnerability in the Voting plugin in Joomla! 2.5.x before 2.5.10 and 3.0.x before 3.0.4 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Cross-site scripting (XSS) vulnerability in the administrator panel in the com_users core component for Joomla! 1.5.x through 1.5.10 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Cross-site scripting (XSS) vulnerability in the nBill (com_nbill) component 2.3.2 for Joomla! allows remote attackers to inject arbitrary web script or HTML via the message parameter in an income action to administrator/index.php.

An issue was discovered in Joomla! through 3.9.19. Lack of input filtering and escaping allows XSS attacks in mod_random_image.

Cross-site scripting (XSS) vulnerability in index.php in the beamospetition (com_beamospetition) 1.0.12 component for Joomla! allows remote attackers to inject arbitrary web script or HTML via the pet parameter in a sign action.

Cross-site scripting (XSS) vulnerability in the Quickl Form component for Joomla! allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Cross-site scripting (XSS) vulnerability in Joomla! 2.5.x before 2.5.7 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Cross-site scripting (XSS) vulnerability in the language search component in Joomla! before 3.0.1 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, related to a "typographical error."

Cross-site scripting (XSS) vulnerability in modules/mod_languages/tmpl/default.php in the Language Switcher module for Joomla! 2.5.x before 2.5.7 allows remote attackers to inject arbitrary web script or HTML via the PATH_INFO to index.php. NOTE: some of these details are obtained from third party information.

In Joomla! before 3.9.19, incorrect input validation of the module tag option in com_modules allows XSS.

In Joomla! before 3.9.19, lack of input validation in the heading tag option of the "Articles - Newsflash" and "Articles - Categories" modules allows XSS.

Cross-site scripting (XSS) vulnerability in the Artist avenue (com_artistavenue) component for Joomla! and Mambo allows remote attackers to inject arbitrary web script or HTML via the Itemid parameter to index.php.

Multiple cross-site scripting (XSS) vulnerabilities in the Joomulus (mod_joomulus) module 2.0 for Joomla! allow remote attackers to inject arbitrary web script or HTML via the tagcloud parameter in a tags action to (1) tagcloud_ell.swf, (2) tagcloud_eng.swf, (3) tagcloud_por.swf, (4) tagcloud_rus.swf, and possibly (5) tagcloud_jpn.swf. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

An issue was discovered in Joomla! before 3.9.16. Inadequate handling of CSS selectors in the Protostar and Beez3 JavaScript allows XSS attacks.

Cross-site scripting (XSS) vulnerability in gmap.php in the Almond Classifieds (com_aclassf) component 7.5 for Joomla! allows remote attackers to inject arbitrary web script or HTML via the addr parameter.

An issue was discovered in Joomla! before 3.9.4. The item_title layout in edit views lacks escaping, leading to XSS.

An issue was discovered in Joomla! before 3.9.4. The media form field lacks escaping, leading to XSS.

An issue was discovered in Joomla! before 3.9.4. The JSON handler in com_config lacks input validation, leading to XSS.

Cross-site scripting (XSS) vulnerability in the User Karma module 5.x before 5.x-1.13 and 6.x before 6.x-1.0-beta1, a module for Drupal, allows remote attackers to inject arbitrary web script or HTML via unspecified messages.

An issue was discovered in Joomla! before 3.9.3. A combination of specific web server configurations, in connection with specific file types and browser-side MIME-type sniffing, causes an XSS attack vector.

An issue was discovered in Joomla! before 3.9.3. Inadequate checks at the Global Configuration helpurl settings allowed stored XSS.

An issue was discovered in Joomla! before 3.9.3. Inadequate filtering on URL fields in various core components could lead to an XSS vulnerability.

An issue was discovered in Joomla! before 3.9.3. Inadequate parameter handling in JavaScript code (core.js writeDynaList) could lead to an XSS attack vector.

In Joomla! before 3.7.4, inadequate filtering of potentially malicious HTML tags leads to XSS vulnerabilities in various components.

An issue was discovered in Joomla! 3.7.0 through 3.10.6. Lack of input validation could allow an XSS attack using com_fields.

Cross-site scripting (XSS) vulnerability in Joomla! 2.5.3 allows remote attackers to inject arbitrary web script or HTML via the Host HTTP Header.

In Joomla! 3.x before 3.9.12, inadequate escaping allowed XSS attacks using the logo parameter of the default templates.

Cross-site scripting (XSS) vulnerability in the ja_purity template for Joomla! 1.5.26 and earlier allows remote attackers to inject arbitrary web script or HTML via the Mod* cookie parameter to html/modules.php.