CVE-2026-59791: Improper Restriction of Rendered UI Layers or Frames

In JetBrains YouTrack before 2026.2.17012 cSS injection via Mermaid diagram rendering was possible...

Duplicate Advisory: Grav: Stored CSS injection via Markdown image resize() bypasses prior media style sanitizers in Grav

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-ffmg-hfvg-jhg9. This link is maintained to preserve external references. Original Description Grav before 2.0.0 affected through 2.0.0-rc.9 and the 2.0 branch contains a stored CSS injection vulnerability in the...

GHSA-4WJ4-79RR-PVFF Duplicate Advisory: Grav: Stored CSS injection via Markdown image resize() bypasses prior media style sanitizers in Grav

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-ffmg-hfvg-jhg9. This link is maintained to preserve external references. Original Description Grav before 2.0.0 affected through 2.0.0-rc.9 and the 2.0 branch contains a stored CSS injection vulnerability in the...

CVE-2026-58657 Grav - Stored CSS Injection via Markdown Image resize() Action

Grav before 2.0.0 affected through 2.0.0-rc.9 and the 2.0 branch contains a stored CSS injection vulnerability in the Markdown image resize media action. Prior media hardening rejects direct ?style= payloads and unsafe attribute fallbacks, but the resize action in Excerpts::processMediaActions...

CVE-2026-58657 Grav - Stored CSS Injection via Markdown Image resize() Action

Grav before 2.0.0 affected through 2.0.0-rc.9 and the 2.0 branch contains a stored CSS injection vulnerability in the Markdown image resize media action. Prior media hardening rejects direct ?style= payloads and unsafe attribute fallbacks, but the resize action in Excerpts::processMediaActions...

CVE-2026-58657

Grav before 2.0.0 affected through 2.0.0-rc.9 and the 2.0 branch contains a stored CSS injection vulnerability in the Markdown image resize media action. Prior media hardening rejects direct ?style= payloads and unsafe attribute fallbacks, but the resize action in Excerpts::processMediaActions...

CVE-2026-58657 Grav - Stored CSS Injection via Markdown Image resize() Action

Grav before 2.0.0 affected through 2.0.0-rc.9 and the 2.0 branch contains a stored CSS injection vulnerability in the Markdown image resize media action. Prior media hardening rejects direct ?style= payloads and unsafe attribute fallbacks, but the resize action in Excerpts::processMediaActions...

CVE-2026-58657: Improper Neutralization of Input During Web Page Generation

Grav before 2.0.0 affected through 2.0.0-rc.9 and the 2.0 branch contains a stored CSS injection vulnerability in the Markdown image resize media action. Prior media hardening rejects direct ?style= payloads and unsafe attribute fallbacks, but the resize action in Excerpts::processMediaActions...

PYSEC-2026-1697 NiceGUI Reflected XSS in ui.add_css, ui.add_scss, and ui.add_sass via Style Injection

Summary A Cross-Site Scripting XSS vulnerability exists in ui.addcss, ui.addscss, and ui.addsass functions in NiceGUI v3.3.1 and earlier. These functions allow developers to inject styles dynamically. However, they lack proper sanitization or encoding for the JavaScript context they generate. An...

NiceGUI Reflected XSS in ui.add_css, ui.add_scss, and ui.add_sass via Style Injection

SummaryA Cross-Site Scripting XSS vulnerability exists in ui.addcss, ui.addscss, and ui.addsass functions in NiceGUI v3.3.1 and earlier.These functions allow developers to inject styles dynamically. However, they lack proper sanitization or encoding for the JavaScript context they generate. An...

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Overview weasyprint is a The Awesome Document Factory Affected versions of this package are vulnerable to Improper Neutralization of Special Elements in Output Used by a Downstream Component 'Injection' in the processing of presentational hints when unescaped attribute values are embedded into CS...

GHSA-JHHC-3HCP-QHM5 WeasyPrint has CSS Injection via Presentational Hints

Summary A CSS injection issue exists in WeasyPrint when HTML presentational hints are enabled. Unescaped attribute values are embedded into CSS, allowing injection of arbitrary CSS declarations. This affects applications processing untrusted HTML input. Details File: weasyprint/css/init.py The...

CVE-2026-4804

The Zakra theme for WordPress is vulnerable to Stored Cross-Site Scripting via post meta values in all versions up to, and including, 4.2.0. This is due to the theme registering three post meta fields zakramenuitemcolor, zakramenuitemhovercolor, and zakramenuitemactivecolor with 'showinrest' = tr...

CVE-2026-4804

The Zakra theme for WordPress is vulnerable to Stored Cross-Site Scripting via post meta values in all versions up to, and including, 4.2.0. This is due to the theme registering three post meta fields zakramenuitemcolor, zakramenuitemhovercolor, and zakramenuitemactivecolor with 'showinrest' = tr...

Cross-site Scripting (XSS)

Overview @asymmetric-effort/specifyjs is an A declarative TypeScript UI framework built for performance and simplicity Affected versions of this package are vulnerable to Cross-site Scripting XSS in the renderToString process. An attacker can inject malicious CSS expressions by bypassing the...

PT-2026-54448

Name of the Vulnerable Software and Affected Versions Thunderbird versions prior to 140.12.1 Thunderbird versions prior to 152.0.1 Description An attacker can inject arbitrary styled content, phishing links, and CSS to manipulate the chat UI by sending HTML chat messages via Matrix or XMPP...

CVE-2026-44696

OpenProject is open-source, web-based project management software. Prior to 17.4.0, OpenProject's rich text markdown rendering pipeline uses Sanitize::Config::RELAXED:css for inline style sanitization. This configuration permits essentially all CSS properties in style attributes on permitted HTML...

CVE-2026-44696 OpenProject: Stored CSS injection via Sanitize::Config::RELAXED[:css] enables phishing overlays and data exfiltration

OpenProject is open-source, web-based project management software. Prior to 17.4.0, OpenProject's rich text markdown rendering pipeline uses Sanitize::Config::RELAXED:css for inline style sanitization. This configuration permits essentially all CSS properties in style attributes on permitted HTML...

CVE-2026-44696 OpenProject: Stored CSS injection via Sanitize::Config::RELAXED[:css] enables phishing overlays and data exfiltration

OpenProject is open-source, web-based project management software. Prior to 17.4.0, OpenProject's rich text markdown rendering pipeline uses Sanitize::Config::RELAXED:css for inline style sanitization. This configuration permits essentially all CSS properties in style attributes on permitted HTML...

CVE-2026-44696 OpenProject: Stored CSS injection via Sanitize::Config::RELAXED[:css] enables phishing overlays and data exfiltration

OpenProject is open-source, web-based project management software. Prior to 17.4.0, OpenProject's rich text markdown rendering pipeline uses Sanitize::Config::RELAXED:css for inline style sanitization. This configuration permits essentially all CSS properties in style attributes on permitted HTML...