Information disclosure in Contao
CVE-2025-57756
Contao is an Open Source CMS. In versions starting from 4.9.14 and prior to 4.13.56, 5.3.38, and 5.6.1, protected content elements that are rendered as fragments are indexed and become publicly available in the front end search. This issue…
Vulnerability class: Information Disclosure
EPSS: 0.001 (20.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Contao — versions >= 4.9.14, < 4.13.56, >= 5.0.0-RC1, < 5.3.38, >= 5.4.0-RC1, < 5.6.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/contao/contao/security/advisories/GHSA-2xmj-8wmq-7475 (x_refsource_CONFIRM)
- https://github.com/contao/contao/commit/a03976c459b6f3985a28f6488b82a76ffb6c0514 (x_refsource_MISC)
- https://contao.org/en/security-advisories/information-disclosure-in-the-front-end-search-index (x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-57756?
- CVE-2025-57756 is a medium-severity vulnerability in Contao, classified under Information Disclosure. CVSS score: 5.3/10. Published 2025-08-28.
- How severe is CVE-2025-57756?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2025-57756 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.