October CMS Has Stored XSS In Backend Editor Markup Classes

A stored cross-site scripting XSS vulnerability was identified in the Backend Editor Settings. The Markup Classes fields used for paragraph styles, inline styles, table styles, etc. did not sanitize input to valid CSS class name characters. Malicious values were rendered unsanitized in Froala...

CVE-2026-25133 October CMS has Stored XSS via SVG Filter Bypass

October is a Content Management System CMS and web platform. Versions prior to 3.7.14 and 4.1.10 contain a stored cross-site scripting XSS vulnerability in the SVG sanitization logic. The regex pattern used to strip event handler attributes such as onclick or onload could be bypassed using a...

CVE-2026-25133 October CMS has Stored XSS via SVG Filter Bypass

October is a Content Management System CMS and web platform. Versions prior to 3.7.14 and 4.1.10 contain a stored cross-site scripting XSS vulnerability in the SVG sanitization logic. The regex pattern used to strip event handler attributes such as onclick or onload could be bypassed using a...

CVE-2026-25133 October CMS has Stored XSS via SVG Filter Bypass

October is a Content Management System CMS and web platform. Versions prior to 3.7.14 and 4.1.10 contain a stored cross-site scripting XSS vulnerability in the SVG sanitization logic. The regex pattern used to strip event handler attributes such as onclick or onload could be bypassed using a...

CVE-2026-25133

CVE-2026-25133 affects October CMS prior to 3.7.14 and 4.1.10, where a stored XSS can be injected via crafted SVGs uploaded through the Media Manager due to a bypass in the SVG sanitization regex. The vulnerability requires authenticated backend access with media upload permissions and triggers w...

CVE-2026-25125 October CMS: Environment Variable Exfiltration via INI Parser Interpolation

October is a Content Management System CMS and web platform. Versions prior to 3.7.14 and 4.1.10 contain a server-side information disclosure vulnerability in the INI settings parser. Because PHP's parseinistring function supports $ syntax for environment variable interpolation, attackers with...

CVE-2026-25125

CVE-2026-25125 affects October CMS versions prior to 3.7.14 and 4.1.10. The issue is a server-side information disclosure in the INI settings parser: if cms.safe_mode is enabled, an Editor user can inject patterns like ${APP_KEY} or ${DB_PASSWORD} via parse_ini_string() through page settings, cau...

CVE-2026-25125 October CMS: Environment Variable Exfiltration via INI Parser Interpolation

October is a Content Management System CMS and web platform. Versions prior to 3.7.14 and 4.1.10 contain a server-side information disclosure vulnerability in the INI settings parser. Because PHP's parseinistring function supports $ syntax for environment variable interpolation, attackers with...

October CMS has Stored XSS in Event Log Mail Preview

A stored cross-site scripting XSS vulnerability was identified in the Event Log mail preview feature. When viewing logged mail messages, HTML content was rendered in an iframe without proper sandboxing, allowing JavaScript execution in the viewer's browser context. Impact - Stored XSS via mail...

GHSA-J4J5-9X6G-RGXC October CMS has Stored XSS in Event Log Mail Preview

A stored cross-site scripting XSS vulnerability was identified in the Event Log mail preview feature. When viewing logged mail messages, HTML content was rendered in an iframe without proper sandboxing, allowing JavaScript execution in the viewer's browser context. Impact - Stored XSS via mail...

October CMS has Stored XSS in Backend Editor Markup Classes

A stored cross-site scripting XSS vulnerability was identified in the Backend Editor Settings. The Markup Classes fields used for paragraph styles, inline styles, table styles, etc. did not sanitize input to valid CSS class name characters. Malicious values were rendered unsanitized in Froala...

GHSA-6QMH-J78V-FFP7 October CMS has Stored XSS in Backend Editor Markup Classes

A stored cross-site scripting XSS vulnerability was identified in the Backend Editor Settings. The Markup Classes fields used for paragraph styles, inline styles, table styles, etc. did not sanitize input to valid CSS class name characters. Malicious values were rendered unsanitized in Froala...

CVE-2026-24906

October is a Content Management System CMS and web platform. Versions prior to 3.7.14 and 4.1.10 contain a Stored Cross-Site Scripting XSS vulnerability in the Backend Editor Settings. The Markup Classes fields used for paragraph styles, inline styles, table styles, etc. did not sanitize input to...

CVE-2026-24907 October CMS has Stored XSS via Event Log Mail Preview

October is a Content Management System CMS and web platform. Versions prior to 3.7.14 and 4.1.10 contain a stored cross-site scripting XSS vulnerability in the Event Log mail preview feature. When viewing logged mail messages, HTML content was rendered in an iframe without proper sandboxing,...

CVE-2026-24907

CVE-2026-24907 affects October CMS: versions prior to 3.7.14 and 4.1.10 contain a stored XSS in the Event Log mail preview feature. HTML is rendered in an iframe without proper sandboxing when viewing logged mail messages, allowing JavaScript execution in the viewer’s browser context. The issue i...

CVE-2026-24907 October CMS has Stored XSS via Event Log Mail Preview

October is a Content Management System CMS and web platform. Versions prior to 3.7.14 and 4.1.10 contain a stored cross-site scripting XSS vulnerability in the Event Log mail preview feature. When viewing logged mail messages, HTML content was rendered in an iframe without proper sandboxing,...

CVE-2026-24907 October CMS has Stored XSS via Event Log Mail Preview

October is a Content Management System CMS and web platform. Versions prior to 3.7.14 and 4.1.10 contain a stored cross-site scripting XSS vulnerability in the Event Log mail preview feature. When viewing logged mail messages, HTML content was rendered in an iframe without proper sandboxing,...

CVE-2026-24906 October CMS has Stored XSS in its Backend Editor Markup Classes

October is a Content Management System CMS and web platform. Versions prior to 3.7.14 and 4.1.10 contain a Stored Cross-Site Scripting XSS vulnerability in the Backend Editor Settings. The Markup Classes fields used for paragraph styles, inline styles, table styles, etc. did not sanitize input to...

CVE-2026-24906

October is a Content Management System CMS and web platform. Versions prior to 3.7.14 and 4.1.10 contain a Stored Cross-Site Scripting XSS vulnerability in the Backend Editor Settings. The Markup Classes fields used for paragraph styles, inline styles, table styles, etc. did not sanitize input to...

CVE-2026-24906 October CMS has Stored XSS in its Backend Editor Markup Classes

October is a Content Management System CMS and web platform. Versions prior to 3.7.14 and 4.1.10 contain a Stored Cross-Site Scripting XSS vulnerability in the Backend Editor Settings. The Markup Classes fields used for paragraph styles, inline styles, table styles, etc. did not sanitize input to...