CVE-2026-91121 Discourse: Chat upload filenames rendered as raw HTML in excerpts

Discourse is an open-source discussion platform. Prior to 2026.1.8, 2026.6.3, 2026.7.2, and 2026.8.0, attacker-controlled upload filenames used in chat message excerpts were rendered as unescaped HTML. A user able to upload a file and send chat content could place markup in a filename that was th...

EUVD-2026-86306

Discourse is an open-source discussion platform. Prior to 2026.1.8, 2026.6.3, 2026.7.2, and 2026.8.0, attacker-controlled upload filenames used in chat message excerpts were rendered as unescaped HTML. A user able to upload a file and send chat content could place markup in a filename that was th...

CVE-2026-91121 Discourse: Chat upload filenames rendered as raw HTML in excerpts

Discourse is an open-source discussion platform. Prior to 2026.1.8, 2026.6.3, 2026.7.2, and 2026.8.0, attacker-controlled upload filenames used in chat message excerpts were rendered as unescaped HTML. A user able to upload a file and send chat content could place markup in a filename that was th...

CVE-2026-91120 Discourse: Stored HTML injection in video notification emails

Discourse is an open-source discussion platform. Prior to 2026.1.8, 2026.6.3, 2026.7.2, and 2026.8.0, provider-controlled video titles in lazy video embeds could be reparsed as HTML when Discourse generated notification emails or chat summaries. A user with standard posting privileges could creat...

EUVD-2026-86304

Discourse is an open-source discussion platform. Prior to 2026.1.8, 2026.6.3, 2026.7.2, and 2026.8.0, provider-controlled video titles in lazy video embeds could be reparsed as HTML when Discourse generated notification emails or chat summaries. A user with standard posting privileges could creat...

CVE-2026-91120 Discourse: Stored HTML injection in video notification emails

Discourse is an open-source discussion platform. Prior to 2026.1.8, 2026.6.3, 2026.7.2, and 2026.8.0, provider-controlled video titles in lazy video embeds could be reparsed as HTML when Discourse generated notification emails or chat summaries. A user with standard posting privileges could creat...

CVE-2026-91120

The open-source discussion platform Discourse contains a stored HTML injection vulnerability in its video notification email and chat summary generation. Prior to versions 2026.1.8, 2026.6.3, 2026.7.2, and 2026.8.0 , provider-controlled video titles from lazy video embeds (YouTube, Vimeo, or TikT...

CVE-2026-91120 Discourse: Stored HTML injection in video notification emails

Discourse is an open-source discussion platform. Prior to 2026.1.8, 2026.6.3, 2026.7.2, and 2026.8.0, provider-controlled video titles in lazy video embeds could be reparsed as HTML when Discourse generated notification emails or chat summaries. A user with standard posting privileges could creat...

SunEditor: Critical XSS vulnerability - sanitizer bypass

Summary SUNEDITOR v2.47.10 appears to allow JavaScript execution through crafted namespaced HTML elements. The sanitization logic does not fully remove executable event-handler attributes from certain custom/namespaced tags. As a result, an attacker may be able to inject HTML content that execute...

GHSA-6RF4-V2FH-M6P4 SunEditor: Critical XSS vulnerability - sanitizer bypass

Summary SUNEDITOR v2.47.10 appears to allow JavaScript execution through crafted namespaced HTML elements. The sanitization logic does not fully remove executable event-handler attributes from certain custom/namespaced tags. As a result, an attacker may be able to inject HTML content that execute...

CVE-2026-56736 phpMyFAQ has Stored XSS in Admin FAQ Editor via HTML Entity Bypass in Frontend FAQ Submission

phpMyFAQ is an open source FAQ web application. A stored cross-site scripting XSS vulnerability in versions prior to 4.2.0-alpha allows any unauthenticated user or low-privileged registered user to inject arbitrary JavaScript that executes in an administrator's browser when they review or edit a...

CVE-2026-56736 phpMyFAQ has Stored XSS in Admin FAQ Editor via HTML Entity Bypass in Frontend FAQ Submission

phpMyFAQ is an open source FAQ web application. A stored cross-site scripting XSS vulnerability in versions prior to 4.2.0-alpha allows any unauthenticated user or low-privileged registered user to inject arbitrary JavaScript that executes in an administrator's browser when they review or edit a...

CVE-2026-56736

The open-source FAQ web application phpMyFAQ is vulnerable to a stored cross-site scripting (XSS) flaw in versions prior to 4.2.0-alpha . The root cause is an HTML entity bypass where the html_entity_decode() function converts entities into executable HTML after strip_tags() has already processed...

SUSE-SU-2026:23918-1 Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues: Update to Firefox Extended Support Release 153.3.0 ESR MFSA 2026-93, bsc1280371: - CVE-2026-92005: Use-after-free in the Audio/Video: Web Codecs component. - CVE-2026-92006: Privilege escalation due to incorrect boundary conditions in the...

html/template: golang: Go html/template: Cross-Site Scripting via pathological input

A flaw was found in the html/template component of Go golang. Pathological inputs could prematurely close an unescaped forward slash '/', allowing an attacker to inject arbitrary content. This could lead to Cross-Site Scripting XSS, where malicious scripts are executed in a user's browser,...

Astra Linux – Vulnerability in Chromium

The use of after-free in the Platform in Google Chrome before version 152.0.7977.65 allowed a remote attacker to execute arbitrary code within the sandbox through a crafted HTML page. Chromium security severity: High...

Astra Linux – Vulnerability in Chromium

In versions of Google Chrome prior to 152.0.7977.65, improper representation of UI elements allowed a remote attacker to exploit social engineering techniques to spoof UI elements through a crafted HTML page. Chromium security severity: Low...

Astra Linux – Vulnerability in Chromium

Insufficient policy enforcement in passwords in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to leak cross-origin data through a crafted HTML page. Chromium security severity: Medium...

Astra Linux – Vulnerability in Chromium

Improper handling of case sensitivity in the FileSystem in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to leverage social engineering to bypass system access restrictions through a crafted HTML page. Chromium security severity: Medium...

Astra Linux – Vulnerability in Chromium

Incorrect authorization in the Network of Google Chrome prior to 152.0.7977.65 allowed a remote attacker to bypass system access restrictions through a crafted HTML page. Chromium security severity: Medium...