SB2025032531 - Multiple vulnerabilities in REDAXO

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Cross-site scripting (CVE-ID: CVE-2025-27412)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the rex-api-result parameter. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

2) Arbitrary file upload (CVE-ID: CVE-2025-27411)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload in mediapool page. A remote user can upload a malicious file and execute it on the server.

Remediation

Install update from vendor's website.

References

• https://github.com/redaxo/redaxo/security/advisories/GHSA-8366-xmgf-334f
• https://github.com/redaxo/redaxo/commit/3b2159bb45da0ab6cfaef5c8cf8b602ee5e2fb37
• https://github.com/redaxo/redaxo/security/advisories/GHSA-wppf-gqj5-fc4f