Redaxo has a Mediapool isAllowedExtension bypass via multi-segment filename that leads to authenticated RCE on Apache mod_php multi-extension handlers

Summary rexmediapool::isAllowedExtension in redaxo/src/addons/mediapool/lib/mediapool.php accepts filenames that contain a blocked extension as a non-terminal segment of a longer extension chain, for example shell.php.any.jpg. The check only catches the blocked extension when it appears at the en...

CVE-2026-53599 Redaxo has a Mediapool isAllowedExtension bypass via multi-segment filename that leads to authenticated RCE on Apache mod_php multi-extension handlers

REDAXO is a PHP-based content management system. From 5.18.2 until 5.21.1, rexmediapool::isAllowedExtension in redaxo/src/addons/mediapool/lib/mediapool.php lets an authenticated backend user with mediaupload permission upload a JPEG/PHP polyglot named shell.php.any.jpg, which web servers with...

CVE-2026-53599

CVE-2026-53599 affects REDAXO CMS versions 5.18.2–5.21.1 where rex_mediapool::isAllowedExtension lets an authenticated backend user with media[upload] permission upload a JPEG/PHP polyglot named shell.php.any.jpg. On servers with multi-extension PHP handlers, this can be executed as the web serve...

EUVD-2026-51626

REDAXO is a PHP-based content management system. From 5.18.2 until 5.21.1, rexmediapool::isAllowedExtension in redaxo/src/addons/mediapool/lib/mediapool.php lets an authenticated backend user with mediaupload permission upload a JPEG/PHP polyglot named shell.php.any.jpg, which web servers with...

CVE-2018-25353

Redaxo CMS Mediapool Addon 5.5.1 and older contains an arbitrary file upload vulnerability that allows authenticated users to bypass file extension blacklist restrictions. Attackers with editor accounts can upload executable files by using obfuscated extensions like php71 or php53 to evade the...

CVE-2018-25353 Redaxo CMS Mediapool Addon 5.5.1 Arbitrary File Upload

Redaxo CMS Mediapool Addon 5.5.1 and older contains an arbitrary file upload vulnerability that allows authenticated users to bypass file extension blacklist restrictions. Attackers with editor accounts can upload executable files by using obfuscated extensions like php71 or php53 to evade the...

CVE-2018-25353

Redaxo CMS Mediapool Addon 5.5.1 and older contains an arbitrary file upload vulnerability that allows authenticated users to bypass file extension blacklist restrictions. Attackers with editor accounts can upload executable files by using obfuscated extensions like php71 or php53 to evade the...

EUVD-2018-21876

Redaxo CMS Mediapool Addon 5.5.1 and older contains an arbitrary file upload vulnerability that allows authenticated users to bypass file extension blacklist restrictions. Attackers with editor accounts can upload executable files by using obfuscated extensions like php71 or php53 to evade the...

CVE-2018-25353 Redaxo CMS Mediapool Addon 5.5.1 Arbitrary File Upload

Redaxo CMS Mediapool Addon 5.5.1 and older contains an arbitrary file upload vulnerability that allows authenticated users to bypass file extension blacklist restrictions. Attackers with editor accounts can upload executable files by using obfuscated extensions like php71 or php53 to evade the...

Yakamara Media Redaxo CMS Mediapool Addon 安全漏洞

Yakamara Media Redaxo CMS Mediapool Addon is an extension for media resource management within the REDAXO content management system developed by Yakamara Media. Versions of Yakamara Media Redaxo CMS Mediapool Addon prior to version 5.5.1 contained security vulnerabilities. These vulnerabilities...

CVE-2025-66026

REDAXO is a PHP-based CMS. Prior to version 5.20.1, a reflected Cross-Site Scripting XSS vulnerability exists in the Mediapool view where the request parameter argstypes is rendered into an info banner without HTML-escaping. This allows arbitrary JavaScript execution in the backend context when a...

CVE-2025-66026

REDAXO is a PHP-based CMS. Prior to version 5.20.1, a reflected Cross-Site Scripting XSS vulnerability exists in the Mediapool view where the request parameter argstypes is rendered into an info banner without HTML-escaping. This allows arbitrary JavaScript execution in the backend context when a...

CVE-2025-66026 REDAXO is Vulnerable to Reflected XSS in Mediapool Info Banner via args[types]

REDAXO is a PHP-based CMS. Prior to version 5.20.1, a reflected Cross-Site Scripting XSS vulnerability exists in the Mediapool view where the request parameter argstypes is rendered into an info banner without HTML-escaping. This allows arbitrary JavaScript execution in the backend context when a...

EUVD-2025-199662

REDAXO is a PHP-based CMS. Prior to version 5.20.1, a reflected Cross-Site Scripting XSS vulnerability exists in the Mediapool view where the request parameter argstypes is rendered into an info banner without HTML-escaping. This allows arbitrary JavaScript execution in the backend context when a...

CVE-2025-66026

CVE-2025-66026 is a reflected XSS in REDAXO CMS (pre-5.20.1) affecting the Mediapool view where args[types] is echoed into an info banner without escaping. The root cause is lack of HTML-escaping when rendering the value, allowing an authenticated user to trigger arbitrary JavaScript execution in...

CVE-2025-66026 REDAXO is Vulnerable to Reflected XSS in Mediapool Info Banner via args[types]

REDAXO is a PHP-based CMS. Prior to version 5.20.1, a reflected Cross-Site Scripting XSS vulnerability exists in the Mediapool view where the request parameter argstypes is rendered into an info banner without HTML-escaping. This allows arbitrary JavaScript execution in the backend context when a...

CVE-2025-66026 REDAXO is Vulnerable to Reflected XSS in Mediapool Info Banner via args[types]

REDAXO is a PHP-based CMS. Prior to version 5.20.1, a reflected Cross-Site Scripting XSS vulnerability exists in the Mediapool view where the request parameter argstypes is rendered into an info banner without HTML-escaping. This allows arbitrary JavaScript execution in the backend context when a...

REDAXO 安全漏洞

REDAXO is a content management system from REDAXO open source. A security vulnerability exists in REDAXO versions prior to 5.20.1, which stems from reflective cross-site scripting in the Mediapool view and could lead to arbitrary JavaScript execution...

REDAXO CMS is vulnerable to Reflected XSS in Mediapool Info Banner via args[types]

Summary A reflected Cross-Site Scripting XSS vulnerability exists in the Mediapool view where the request parameter argstypes is rendered into an info banner without HTML-escaping. This allows arbitrary JavaScript execution in the backend context when an authenticated user visits a crafted link...

GHSA-X6VR-Q3VF-VQGQ REDAXO CMS is vulnerable to Reflected XSS in Mediapool Info Banner via args[types]

Summary A reflected Cross-Site Scripting XSS vulnerability exists in the Mediapool view where the request parameter argstypes is rendered into an info banner without HTML-escaping. This allows arbitrary JavaScript execution in the backend context when an authenticated user visits a crafted link...