EUVD-2026-64132

Defuddle cleans up HTML pages. Prior to 0.19.1, site extractors interpolate page-derived image alt and src values, og:image values, and video descriptions into HTML strings without context-appropriate escaping, and buildExtractorResponse returns this contentHtml without the main pipeline's...

CVE-2026-55850

Element Web is a Matrix web client built using the Matrix React SDK. Prior to 1.12.22, EmbeddedPage in apps/web/src/components/structures/EmbeddedPage.tsx renders homeserver-supplied homepage content through dangerouslySetInnerHTML without passing it through sanitizedHtmlNode. A malicious...

CVE-2026-54681

DiscordChatExporter saves Discord chat logs to a file. Prior to 2.47.2, the VisitEmojiAsync method in DiscordChatExporter.Core/Exporting/HtmlMarkdownVisitor.cs interpolates emoji.Name into the alt attribute and emoji.Code into the title attribute without HTML entity encoding. This affects HTML...

CVE-2026-35163

OctoPrint provides a web interface for controlling consumer 3D printers. Prior to 1.11.8 and 2.0.0rc3, Suppressed Command notification popups use PNotify rendering for printer-controlled payload.command and payload.message values in src/octoprint/static/js/app/viewmodels/terminal.js without HTML...

CVE-2026-54681

DiscordChatExporter prior to 2.47.2 is vulnerable to HTML attribute injection in its HTML export functionality. The VisitEmojiAsync method in DiscordChatExporter.Core/Exporting/HtmlMarkdownVisitor.cs interpolates emoji.Name into the alt attribute and emoji.Code into the title attribute without HT...

EUVD-2026-64048

DiscordChatExporter saves Discord chat logs to a file. Prior to 2.47.2, the VisitEmojiAsync method in DiscordChatExporter.Core/Exporting/HtmlMarkdownVisitor.cs interpolates emoji.Name into the alt attribute and emoji.Code into the title attribute without HTML entity encoding. This affects HTML...

EUVD-2026-64047

DiscordChatExporter saves Discord chat logs to a file. Prior to 2.47.2, HTML exports generated with markdown formatting disabled pass attacker-controlled content through FormatMarkdownAsync and FormatEmbedMarkdownAsync in DiscordChatExporter.Core/Exporting/MessageGroupTemplate.cshtml and render i...

EUVD-2026-64046

Element Web is a Matrix web client built using the Matrix React SDK. Prior to 1.12.22, EmbeddedPage in apps/web/src/components/structures/EmbeddedPage.tsx renders homeserver-supplied homepage content through dangerouslySetInnerHTML without passing it through sanitizedHtmlNode. A malicious...

CVE-2026-55850 Element Web: A malicious homeserver can inject HTML in Element Web using its homepage

Element Web is a Matrix web client built using the Matrix React SDK. Prior to 1.12.22, EmbeddedPage in apps/web/src/components/structures/EmbeddedPage.tsx renders homeserver-supplied homepage content through dangerouslySetInnerHTML without passing it through sanitizedHtmlNode. A malicious...

CVE-2026-55850

Element Web (a Matrix web client) prior to 1.12.22 is vulnerable to HTML injection via the EmbeddedPage component (apps/web/src/components/structures/EmbeddedPage.tsx). The component renders homeserver-supplied homepage content through dangerouslySetInnerHTML without passing it through sanitizedH...

CVE-2026-55850 Element Web: A malicious homeserver can inject HTML in Element Web using its homepage

Element Web is a Matrix web client built using the Matrix React SDK. Prior to 1.12.22, EmbeddedPage in apps/web/src/components/structures/EmbeddedPage.tsx renders homeserver-supplied homepage content through dangerouslySetInnerHTML without passing it through sanitizedHtmlNode. A malicious...

CVE-2026-35163

OctoPrint (a web interface for controlling 3D printers) is affected by a cross-site scripting (XSS) vulnerability in its Suppressed Command notification popups . The root cause is that printer-controlled payload.command and payload.message values in terminal.js are rendered via PNotify without HT...

PT-2026-79471

Name of the Vulnerable Software and Affected Versions Esri Portal for ArcGIS versions prior to 11.6 Description A remote, highly privileged attacker can insert arbitrary HTML into the Portal for ArcGIS Home application. HTML injection is a process where an attacker injects malicious HTML code int...

PT-2026-79470

Name of the Vulnerable Software and Affected Versions Esri Portal for ArcGIS versions prior to 11.3 Description An HTML injection issue exists that allows a remote attacker with administrative privileges to insert arbitrary HTML into an administrative API. HTML injection is a technique where an...

Linux Distros Unpatched Vulnerability : CVE-2026-73254

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Mongoose is an embedded web server and network library. Prior to 7.22, an attacker who can create a file with an HTML payload in its name can trigger stored...

CVE-2026-54505 TREK: Stored cross-user HTML injection via trip title in the Journey suggestion banner

TREK is a collaborative travel planner. Prior to 3.1.0, when the Journey add-on is enabled, TREK interpolates the unescaped activeSuggestion.title value into journey.frontpage.suggestionText through client/src/i18n/TranslationContext.tsx and renders the result with dangerouslySetInnerHTML in...

GHSA-H58C-XCCX-75M3 Coder: Stored HTML injection via unescaped ApplicationName and LogoURL appearance settings

Summary The ApplicationName and LogoURL appearance settings were rendered into HTML output without sufficient escaping which let a highly privileged Owner-role user inject HTML into the Coder dashboard and SMTP notification emails. Note: Exploitation requires the Owner role which already holds fu...

Coder: Stored HTML injection via unescaped ApplicationName and LogoURL appearance settings

Summary The ApplicationName and LogoURL appearance settings were rendered into HTML output without sufficient escaping which let a highly privileged Owner-role user inject HTML into the Coder dashboard and SMTP notification emails. Note: Exploitation requires the Owner role which already holds fu...

CVE-2026-76367 Stored Cross-Site Scripting (XSS) through Notes in Splunk SOAR

In Splunk SOAR versions below 8.6.0, a user who holds the "Incident Commander" Splunk SOAR role could store JavaScript in a note and run it in the browser of another user when that user opens the note. The stored Cross-Site Scripting XSS vulnerability is possible because Splunk SOAR can treat...

CVE-2026-76210 phpMyFAQ before v4.1.6 Local File Disclosure via PDF Export

phpMyFAQ before 4.1.6 does not adequately sanitize HTML in FAQ answers before generating PDFs via TCPDF. An attacker with permission to create or edit FAQ content can embed an tag whose src references a local file under the web root's content/ directory e.g., content/core/config/database.php. Whe...