Detections
Analytics

SCA: security update for redaxo/source (GHSA-98pp-vccm-qm25)

high Tenable Cloud Security Plugin ID 445556

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - REDAXO is a PHP-based content management system. From 5.18.2 until 5.21.1,
 rex_mediapool::isAllowedExtension in redaxo/src/addons/mediapool/lib/mediapool.php lets an authenticated
 backend user with media[upload] permission upload a JPEG/PHP polyglot named shell.php.any.jpg, which web
 servers with multi-extension PHP handlers can execute as the web-server user. This issue is fixed in
 version 5.21.1. (CVE-2026-53599)

Solution

Update the redaxo/source library and its related packages to version 5.21.1 or later.

See Also

https://github.com/advisories/GHSA-98pp-vccm-qm25

Plugin Details

Severity: High

ID: 445556

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 8/1/2026

Updated: 8/1/2026

Risk Information

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:H/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2026-53599

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/31/2026

Vulnerability Publication Date: 7/31/2026

Reference Information

CVE: CVE-2026-53599

cwe: CWE-434