Contao vulnerabilities
5 known CVE vulnerabilities in Contao, translated and rated.
- CVE-2017-10993High
Contao before 3.5.28 and 4.x before 4.4.1 allows remote attackers to include and execute arbitrary local PHP files via a crafted parameter in a URL, known as Directory Traversal.
- CVE-2026-55825Low
Contao CMS versions 5.7.0 through 5.7.6 contain a cross-job authorization bypass vulnerability. An authenticated backend user can read attachments from other jobs by manipulating the attachment identifier with '../' sequences.
- CVE-2026-57232Low
Contao CMS versions 5.3.35 through 5.3.47 and 5.7.0-RC1 through 5.7.8 contain an SSRF vulnerability in the Feed Reader module. A backend user with module-edit permissions can make the server request internal network services, loopback addresses, or cloud metadata endpoints.
- CVE-2026-55824Low
Contao CMS versions 4.13.40 through 5.3.46 and 5.7.0-RC1 through 5.7.6 contain a credential leakage vulnerability via the crawler. The crawler improperly cleans authentication options, potentially sending credentials to external hosts.
- CVE-2026-48956Medium
An improper access check in Contao allows unauthorized users to display a list of modules in the frontend.