CVE-2026-27694

Traccar is an open source GPS tracking system. In org.traccar:traccar versions starting at 6.11.1 before 6.13.0, the email notification templates insert user-controlled device, geofence, and driver names into HTML email output without proper escaping. An attacker with low privileges can store...

CVE-2026-41518

Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. In versions 4.9.0 through 5.0.0, an authenticated user with project-editor permissions can store arbitrary HTML/JavaScript in the ChartDatasetConfig.legend field. The...

CVE-2026-40565

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, FreeScout's linkify function in app/Misc/Helper.php converts plain-text URLs in email bodies into HTML anchor tags without escaping double-quote characters " in the URL. HTMLPurifier called first via...

CVE-2026-11166

Inappropriate implementation in SVG in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to inject arbitrary scripts or HTML UXSS via a crafted HTML page. Chromium security severity: Medium...

CVE-2026-10729 HTML injection in the notification email for "Slow Redirect" and "Cloned Website" Canarytokens

An HTML injection vulnerability in the notification email for "Slow Redirect" and "Cloned Website" Canarytokens exists in Thinkst Applied Research Canarytokens, enabling Interface Manipulation, Cross-Site Scripting XSS in emails clients that render HTML emails. This issue affects Canarytokens: fr...

EUVD-2026-34085

An HTML injection vulnerability in the notification email for "Slow Redirect" and "Cloned Website" Canarytokens exists in Thinkst Applied Research Canarytokens, enabling Interface Manipulation, Cross-Site Scripting XSS in emails clients that render HTML emails. This issue affects Canarytokens: fr...

Google Chrome: Input validation error vulnerability

Google Chrome is a web browser developed by Google Inc. Versions of Google Chrome prior to 149.0.7827.53 had a vulnerability related to input validation. This vulnerability stemmed from insufficient input validation in the DevTools component, which could allow remote attackers to inject arbitrary...

CVE-2026-43979 Local Deep Research: HTML Injection via Unescaped User Input in PDF Export (`pdf_service.py:_markdown_to_html`)

Local Deep Research is an AI-powered research assistant for deep, iterative research. Prior to 1.6.0, PDFService.markdowntohtml constructs an HTML document by interpolating user-controlled values — specifically title sourced from research.title or research.query and metadata key-value pairs —...

PYSEC-2026-2208

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, rendertocul builds a table-of-contents tree from a list of level, id, text tuples. Both the id value used as href="" and the text value used as the visible link label are inserted into tags via a plain Python format...

UBUNTU-CVE-2026-44898

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, rendertocul builds a table-of-contents tree from a list of level, id, text tuples. Both the id value used as href="" and the text value used as the visible link label are inserted into tags via a plain Python format...

CVE-2026-41149

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Versions 10.9.5 and earlier, as well as 11.0.0-alpha.1 through 11.14.0, are vulnerable to HTML injection under the default configuration. Specifically, the classDef directive in Mermaid state...

EUVD-2026-31520

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Versions 10.9.5 and earlier, as well as 11.0.0-alpha.1 through 11.14.0, are vulnerable to HTML injection under the default configuration. Specifically, the classDef directive in Mermaid state...

CVE-2026-41149

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Versions 10.9.5 and earlier, as well as 11.0.0-alpha.1 through 11.14.0, are vulnerable to HTML injection under the default configuration. Specifically, the classDef directive in Mermaid state...

EUVD-2026-31494

Mantis Bug Tracker MantisBT is an open source issue tracker. In versions 2.28.1 and below, improper escaping of the redirection page retrieved from the request's Referer header allows an attacker to inject HTML. While this is generally not directly actionable as modern browsers will URL-encode...

Mermaid security vulnerabilities

Mermaid is an open-source application developed by mermaid-js. It uses text and code to create charts and visualizations. Mermaid versions 10.9.5 and earlier, as well as 11.0.0-alpha.1 through 11.14.0, have security vulnerabilities. These vulnerabilities stem from HTML injection under default...

Umbraco.Cms: XSS/HTML Injection in Umbraco Backoffice confirmation dialog

Impact Authenticated users are able to inject HTML vulnerability into an input field, which is rendered in the confirmation dialog without proper output encoding. Patches This issue has been patched in 17.4.0...

CVE-2026-26028 CryptPad: Sanitizer Bypass in Diffmarked.js Allows Arbitrary HTML Injection and Potential XSS

CryptPad is an end-to-end encrypted collaborative office suite. In versions prior to 2026.2.0, the HTML sanitizer in Diffmarked.js can be bypassed due to incomplete attribute filtering on restricted tags. The sanitizer validates only the src attribute of , , and elements, leaving all other...

CVE-2026-5090

Template::Plugin::HTML versions before 3.103 for Perl allows HTML and JavaScript to be injected. The htmlfilter function did not escape single quotes. HTML attributes inside of single quotes could be have code injected. For example, the variable "var" in would not be properly escaped. An attacker...

CVE-2025-40903

A Stored HTML Injection vulnerability was discovered in the Schedule Restore Archive functionality due to improper validation of an input parameter. An authenticated user with administrative privileges can define a malicious restore schedule containing HTML tags. When a victim views the affected...

CVE-2025-40902

A Stored HTML Injection vulnerability was discovered in the Users functionality due to improper validation of an input parameter. An authenticated user with administrative privileges can create a malicious user whose username contains HTML tags. When a victim attempts to delete a group containing...