Privilege escalation in Contao
CVE-2025-57759
Contao is an Open Source CMS. In versions starting from 5.3.0 and prior to 5.3.38 and 5.6.1, under certain conditions, back end users may be able to edit fields of pages and articles without having the necessary permissions. This issue has been patched in versions 5.3.38 and 5.6.1. There are no workarounds.
Vulnerability class: Privilege Escalation
EPSS: 0.002 (13.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Contao — versions >= 5.3.0, < 5.3.38, >= 5.4.0-RC1, < 5.6.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Patch, Third Party Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-57759?
- CVE-2025-57759 is a medium-severity vulnerability in Contao, classified under Improper Privilege Management. CVSS score: 4.3/10. Published 2025-08-28.
- How severe is CVE-2025-57759?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2025-57759 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.