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TI-2025-20247 Aliases CVE-2025-27412GHSA-8366-xmgf-334f

REDAXO allows Authenticated Reflected Cross Site Scripting - packages installation

Priority MEDIUM 60CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

REDAXO is a PHP-based CMS. In Redaxo from 5.0.0 through 5.18.2, the rex-api-result parameter is vulnerable to Reflected cross-site scripting (XSS) on the page of AddOns. This vulnerability is fixed in 5.18.3.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00287 21st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed redaxo (redaxo): 5.18.3redaxo/source (Packagist): 5.18.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
redaxoredaxo5.0.0 to before 5.18.35.18.3Patch availableCNA
—redaxo/source (Packagist)5.0.0 to before 5.18.35.18.3Patch availableGHSA-8366-xmgf-334f
  • redaxo Vendorredaxo Affected 5.0.0 to before 5.18.3 Fixed in 5.18.3 Patch available CNA
  • redaxo/source (Packagist) Vendor— Affected 5.0.0 to before 5.18.3 Fixed in 5.18.3 Patch available GHSA-8366-xmgf-334f

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:redaxo:redaxo:*:*:*:*:*:*:*:*5.0 to before 5.18.3Vulnerableredaxo
  • cpe:2.3:a:redaxo:redaxo:*:*:*:*:*:*:*:* Versions 5.0 to before 5.18.3 Vulnerable ·redaxo

Remediation

  • Fix · CNA redaxo (redaxo) Fixed in 5.18.3
  • Fix · GHSA-8366-xmgf-334f redaxo/source (Packagist) Fixed in 5.18.3 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-27412
  2. 2026-10-03 Alias added: GHSA-8366-xmgf-334f

References

Exploit 1

Advisory 1

Other 1

  • TI-2026-17559 Redaxo has Path Traversal in Backup Addon Leading to Arbitrary File Read CVSS 4.0HIGH 8.3
  • TI-2025-39517 A Remote Code Execution (RCE) vulnerability in the template management component in… CVSS 3.1HIGH 7.2
  • TI-2024-30898 REDAXO CMS v2.11.0 was discovered to contain a remote code execution (RCE) vulnerability. CVSS 3.1HIGH 7.2
  • TI-2024-30896 An arbitrary file upload vulnerability in the MediaPool module of Redaxo CMS v5.17.1… CVSS 3.1HIGH 7.2
  • TI-2024-16680 Redaxo v5.15.1 was discovered to contain a remote code execution (RCE) vulnerability via… CVSS 3.1HIGH 7.2
  • TI-2024-16678 An issue was discovered in REDAXO version 5.15.1, allows attackers to execute arbitrary… CVSS 3.1HIGH 7.2
See all 30 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences