A reflected cross-site scripting vulnerability in the OAuth flow completion endpoints in Mattermost allows an attacker to send AJAX requests on behalf of the victim via sharing a crafted link with a malicious state parameter.

An issue was discovered in Mattermost Server before 3.0.0. It allows XSS via a Legal or Support setting.

An issue was discovered in Mattermost Server before 2.2.0. It allows XSS via a crafted link.

An issue was discovered in Mattermost Server before 3.0.0. It allows XSS via a redirect URL.

An issue was discovered in Mattermost Server before 3.1.0. It allows XSS because the noreferrer and noopener protection mechanisms were not in place.

An issue was discovered in Mattermost Server before 2.2.0. It allows XSS because it configures files to be opened in a browser window.

Mattermost Jira plugin versions shipped with Mattermost versions 8.1.x before 8.1.10, 9.2.x before 9.2.6, 9.3.x before 9.3.2, and 9.4.x before 9.4.3 fail to escape user-controlled outputs when generating HTML pages, which allows an attacker to perform reflected cross-site scripting attacks against the users of the Mattermost server.

Fixed a bypass for a reflected cross-site scripting vulnerability affecting OAuth-enabled instances of Mattermost.

Mattermost 5.38 and earlier fails to sufficiently sanitize clipboard contents, which allows a user-assisted attacker to inject arbitrary web script in product deployments that explicitly disable the default CSP.

Mattermost version 8.1.6 and earlier fails to sanitize channel mention data in posts, which allows an attacker to inject markup in the web client.

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS attacks could occur against an OAuth 2.0 allow/deny page.

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS could occur via a goto_location response to a slash command.

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS could occur via the author_link field of a Slack attachment.

An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. XSS can occur via a link on an error page.

An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. Display names allow XSS.

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS can occur via OpenGraph data.

An issue was discovered in Mattermost Server before 3.5.1. XSS can occur via file preview.

An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. It allows XSS via an uploaded file.

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS could occur via the title_link field of a Slack attachment.

An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. XSS could occur via a channel header.

An issue was discovered in Mattermost Server before 2.1.0. It allows XSS via CSRF.

Mattermost fails to properly check a redirect URL parameter allowing for an open redirect was possible when the user clicked "Back to Mattermost" after providing a invalid custom url scheme in /oauth/{service}/mobile_login?redirect_to=

An issue was discovered in Mattermost Desktop App before 4.4.0. Attackers can open web pages in the desktop application because server redirection is mishandled, aka MMSA-2020-0008.

An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows Phishing because an error page can have a link.

Mattermost Desktop App versions <=5.7.0 fail to correctly prompt for permission when opening external URLs which allows a remote attacker to force a victim over the Internet to run arbitrary programs on the victim's system via custom URI schemes.

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows an attacker to create a button that, when pressed by a user, launches an API request.

An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5, when used as an OAuth 2.0 service provider. It mishandles a deny action for a redirection.

An issue was discovered in Mattermost Server before 5.18.0, 5.17.2, 5.16.4, 5.15.4, and 5.9.7. An attacker can spoof a direct-message channel by changing the type of a channel.

An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. E-mail templates can have a field in which HTML content is not neutralized.

Boards in Mattermost allows an attacker to upload a malicious SVG image file as an attachment to a card and share it using a direct link to the file.

An issue was discovered in Mattermost Server before 3.1.0. It allows XSS via theme color-code values.

Mattermost 6.3.0 and earlier fails to properly sanitize the HTML content in the email invitation sent to guest users, which allows registered users with special permissions to invite guest users to inject unescaped HTML content in the email invitations.

Multiple cross-site scripting (XSS) vulnerabilities in Symphony CMS 2.0.7 and 2.1.1 allow remote attackers to inject arbitrary web script or HTML via the (1) fields[website] parameter in the post comments feature in articles/a-primer-to-symphony-2s-default-theme/ or (2) send-email[recipient] parameter to about/. NOTE: some of these details are obtained from third party information.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Drupal GoogleTag Manager allows Cross-Site Scripting (XSS).This issue affects GoogleTag Manager: from 0.0.0 before 1.10.0.

Multiple cross-site scripting vulnerabilities in Tiki 7.2 and earlier allow remote attackers to inject arbitrary web script or HTML via the path info to (1) tiki-admin_system.php, (2) tiki-pagehistory.php, (3) tiki-removepage.php, or (4) tiki-rename_page.php.

Improper input validation vulnerability in Galaxy Store prior to version 4.5.49.8 allows local attackers to execute JavaScript by launching a web page.

Multiple cross-site scripting (XSS) vulnerabilities on the Accellion File Transfer Appliance (FTA) before FTA_9_12_40 allow remote attackers to inject arbitrary web script or HTML via unspecified input to (1) getimageajax.php, (2) move_partition_frame.html, or (3) wmInfo.html.

dsmall v20180320 allows XSS via the pdr_sn parameter to public/index.php/home/predeposit/index.html.

Cross-site scripting (XSS) vulnerability in the theme_adium_append_message function in empathy-theme-adium.c in the Adium theme in libempathy-gtk in Empathy 3.2.1 and earlier allows remote attackers to inject arbitrary web script or HTML via a crafted alias (aka nickname) in a /me event, a different vulnerability than CVE-2011-3635.

Cross-site scripting (XSS) vulnerability in WebAccess in Novell GroupWise 8.x before 8.0 SP2 allows remote attackers to inject arbitrary web script or HTML via a crafted message, related to "replies."

Cross-site scripting (XSS) vulnerability in Products_Results.php in PowerStore 3.0 allows remote attackers to inject arbitrary web script or HTML via the totalRows_WADAProducts parameter.

A spoofing vulnerability exists when a Lync Server or Skype for Business Server does not properly sanitize a specially crafted request, aka 'Skype for Business and Lync Spoofing Vulnerability'.

Cross-site scripting (XSS) vulnerability in an unspecified portal authentication page in Huawei Agile Controller-Campus with software before V100R001C00SPC319 allows remote attackers to inject arbitrary web script or HTML via unknown vectors.

LeoStream Connection Broker 9.x before 9.0.34.3 allows Unauthenticated Reflected XSS via the /index.pl user parameter. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Cross-site scripting (XSS) vulnerability in phpMyAdmin 4.4.x before 4.4.15.6 and 4.6.x before 4.6.2 allows remote attackers to inject arbitrary web script or HTML via special characters that are mishandled during double URL decoding.

Cross-site scripting (XSS) vulnerability in the Ajax WebMail interface in AXIGEN Mail Server before 7.4.2 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Cross-site scripting (XSS) vulnerability in the web-based management interface in Cisco Meeting Server (formerly Acano Conferencing Server) 1.7 through 1.9 allows remote attackers to inject arbitrary web script or HTML via crafted parameters, aka Bug ID CSCva19922.

Cross-site scripting (XSS) vulnerability in KENT-WEB WEB FORUM 5.1 and earlier allows remote attackers to inject arbitrary web script or HTML via vectors related to cookies.

Cross-site scripting (XSS) vulnerability in the HTML-Template-Pro module before 0.9507 for Perl allows remote attackers to inject arbitrary web script or HTML via template parameters, related to improper handling of > (greater than) and < (less than) characters.

A vulnerability classified as problematic was found in Campcodes Online Traffic Offense Management System 1.0. This vulnerability affects unknown code of the file /classes/Users.phpp. The manipulation of the argument id leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-226054 is the identifier assigned to this vulnerability.