Contao applies improper access control in the back end voters
The advisory, in context
Impact
The table access voter in the back end doesn't check if a user is allowed to access the corresponding module.
Patches
Update to Contao 5.3.38 or 5.6.1.
Workarounds
Do not rely solely on the voter and additionally check USER_CAN_ACCESS_MODULE.
For more information
If you have any questions or comments about this advisory, open an issue in contao/contao.
Affected packages
Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.
From 5.0.0 before 5.3.38
Fixed in 5.3.38
85 explicitly affected versions
5.0.0, 5.0.1, 5.0.10, 5.0.2, 5.0.3, 5.0.4, 5.0.5, 5.0.6, 5.0.7, 5.0.8, 5.0.9, 5.1.0, 5.1.0-RC1, 5.1.0-RC2, 5.1.0-RC3, 5.1.1, 5.1.10, 5.1.11, 5.1.2, 5.1.3, 5.1.4, 5.1.5, 5.1.6, 5.1.7, 5.1.8, 5.1.9, 5.2.0, 5.2.0-RC1, 5.2.0-RC2, 5.2.0-RC3, 5.2.0-RC4, 5.2.0-RC5, 5.2.0-RC6, 5.2.1, 5.2.10, 5.2.2, 5.2.3, 5.2.4, 5.2.5, 5.2.6, 5.2.7, 5.2.8, 5.2.9, 5.3.0, 5.3.0-RC1, 5.3.0-RC2, 5.3.0-RC3, 5.3.0-RC4, 5.3.1, 5.3.10, 5.3.11, 5.3.12, 5.3.13, 5.3.14, 5.3.15, 5.3.16, 5.3.17, 5.3.18, 5.3.19, 5.3.2, 5.3.20, 5.3.21, 5.3.22, 5.3.23, 5.3.24, 5.3.25, 5.3.26, 5.3.27, 5.3.28, 5.3.29, 5.3.3, 5.3.30, 5.3.31, 5.3.32, 5.3.33, 5.3.34, 5.3.35, 5.3.36, 5.3.37, 5.3.4, 5.3.5, 5.3.6, 5.3.7, 5.3.8, 5.3.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "5.0.0"
},
{
"fixed": "5.3.38"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.0.0",
"5.0.1",
"5.0.10",
"5.0.2",
"5.0.3",
"5.0.4",
"5.0.5",
"5.0.6",
"5.0.7",
"5.0.8",
"5.0.9",
"5.1.0",
"5.1.0-RC1",
"5.1.0-RC2",
"5.1.0-RC3",
"5.1.1",
"5.1.10",
"5.1.11",
"5.1.2",
"5.1.3",
"5.1.4",
"5.1.5",
"5.1.6",
"5.1.7",
"5.1.8",
"5.1.9",
"5.2.0",
"5.2.0-RC1",
"5.2.0-RC2",
"5.2.0-RC3",
"5.2.0-RC4",
"5.2.0-RC5",
"5.2.0-RC6",
"5.2.1",
"5.2.10",
"5.2.2",
"5.2.3",
"5.2.4",
"5.2.5",
"5.2.6",
"5.2.7",
"5.2.8",
"5.2.9",
"5.3.0",
"5.3.0-RC1",
"5.3.0-RC2",
"5.3.0-RC3",
"5.3.0-RC4",
"5.3.1",
"5.3.10",
"5.3.11",
"5.3.12",
"5.3.13",
"5.3.14",
"5.3.15",
"5.3.16",
"5.3.17",
"5.3.18",
"5.3.19",
"5.3.2",
"5.3.20",
"5.3.21",
"5.3.22",
"5.3.23",
"5.3.24",
"5.3.25",
"5.3.26",
"5.3.27",
"5.3.28",
"5.3.29",
"5.3.3",
"5.3.30",
"5.3.31",
"5.3.32",
"5.3.33",
"5.3.34",
"5.3.35",
"5.3.36",
"5.3.37",
"5.3.4",
"5.3.5",
"5.3.6",
"5.3.7",
"5.3.8",
"5.3.9"
]
}From 5.4.0-RC1 before 5.6.1
Fixed in 5.6.1
44 explicitly affected versions
5.4.0, 5.4.0-RC1, 5.4.0-RC2, 5.4.0-RC3, 5.4.0-RC4, 5.4.1, 5.4.10, 5.4.11, 5.4.12, 5.4.13, 5.4.14, 5.4.2, 5.4.3, 5.4.4, 5.4.5, 5.4.6, 5.4.7, 5.4.8, 5.4.9, 5.5.0, 5.5.0-RC1, 5.5.0-RC2, 5.5.0-RC3, 5.5.0-RC4, 5.5.1, 5.5.10, 5.5.11, 5.5.12, 5.5.13, 5.5.14, 5.5.15, 5.5.16, 5.5.2, 5.5.3, 5.5.4, 5.5.5, 5.5.6, 5.5.7, 5.5.8, 5.5.9, 5.6.0, 5.6.0-RC1, 5.6.0-RC2, 5.6.0-RC3
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "5.4.0-RC1"
},
{
"fixed": "5.6.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.4.0",
"5.4.0-RC1",
"5.4.0-RC2",
"5.4.0-RC3",
"5.4.0-RC4",
"5.4.1",
"5.4.10",
"5.4.11",
"5.4.12",
"5.4.13",
"5.4.14",
"5.4.2",
"5.4.3",
"5.4.4",
"5.4.5",
"5.4.6",
"5.4.7",
"5.4.8",
"5.4.9",
"5.5.0",
"5.5.0-RC1",
"5.5.0-RC2",
"5.5.0-RC3",
"5.5.0-RC4",
"5.5.1",
"5.5.10",
"5.5.11",
"5.5.12",
"5.5.13",
"5.5.14",
"5.5.15",
"5.5.16",
"5.5.2",
"5.5.3",
"5.5.4",
"5.5.5",
"5.5.6",
"5.5.7",
"5.5.8",
"5.5.9",
"5.6.0",
"5.6.0-RC1",
"5.6.0-RC2",
"5.6.0-RC3"
]
}From 5.0.0 before 5.3.38
Fixed in 5.3.38
85 explicitly affected versions
5.0.0, 5.0.1, 5.0.10, 5.0.2, 5.0.3, 5.0.4, 5.0.5, 5.0.6, 5.0.7, 5.0.8, 5.0.9, 5.1.0, 5.1.0-RC1, 5.1.0-RC2, 5.1.0-RC3, 5.1.1, 5.1.10, 5.1.11, 5.1.2, 5.1.3, 5.1.4, 5.1.5, 5.1.6, 5.1.7, 5.1.8, 5.1.9, 5.2.0, 5.2.0-RC1, 5.2.0-RC2, 5.2.0-RC3, 5.2.0-RC4, 5.2.0-RC5, 5.2.0-RC6, 5.2.1, 5.2.10, 5.2.2, 5.2.3, 5.2.4, 5.2.5, 5.2.6, 5.2.7, 5.2.8, 5.2.9, 5.3.0, 5.3.0-RC1, 5.3.0-RC2, 5.3.0-RC3, 5.3.0-RC4, 5.3.1, 5.3.10, 5.3.11, 5.3.12, 5.3.13, 5.3.14, 5.3.15, 5.3.16, 5.3.17, 5.3.18, 5.3.19, 5.3.2, 5.3.20, 5.3.21, 5.3.22, 5.3.23, 5.3.24, 5.3.25, 5.3.26, 5.3.27, 5.3.28, 5.3.29, 5.3.3, 5.3.30, 5.3.31, 5.3.32, 5.3.33, 5.3.34, 5.3.35, 5.3.36, 5.3.37, 5.3.4, 5.3.5, 5.3.6, 5.3.7, 5.3.8, 5.3.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "5.0.0"
},
{
"fixed": "5.3.38"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.0.0",
"5.0.1",
"5.0.10",
"5.0.2",
"5.0.3",
"5.0.4",
"5.0.5",
"5.0.6",
"5.0.7",
"5.0.8",
"5.0.9",
"5.1.0",
"5.1.0-RC1",
"5.1.0-RC2",
"5.1.0-RC3",
"5.1.1",
"5.1.10",
"5.1.11",
"5.1.2",
"5.1.3",
"5.1.4",
"5.1.5",
"5.1.6",
"5.1.7",
"5.1.8",
"5.1.9",
"5.2.0",
"5.2.0-RC1",
"5.2.0-RC2",
"5.2.0-RC3",
"5.2.0-RC4",
"5.2.0-RC5",
"5.2.0-RC6",
"5.2.1",
"5.2.10",
"5.2.2",
"5.2.3",
"5.2.4",
"5.2.5",
"5.2.6",
"5.2.7",
"5.2.8",
"5.2.9",
"5.3.0",
"5.3.0-RC1",
"5.3.0-RC2",
"5.3.0-RC3",
"5.3.0-RC4",
"5.3.1",
"5.3.10",
"5.3.11",
"5.3.12",
"5.3.13",
"5.3.14",
"5.3.15",
"5.3.16",
"5.3.17",
"5.3.18",
"5.3.19",
"5.3.2",
"5.3.20",
"5.3.21",
"5.3.22",
"5.3.23",
"5.3.24",
"5.3.25",
"5.3.26",
"5.3.27",
"5.3.28",
"5.3.29",
"5.3.3",
"5.3.30",
"5.3.31",
"5.3.32",
"5.3.33",
"5.3.34",
"5.3.35",
"5.3.36",
"5.3.37",
"5.3.4",
"5.3.5",
"5.3.6",
"5.3.7",
"5.3.8",
"5.3.9"
]
}From 5.4.0-RC1 before 5.6.1
Fixed in 5.6.1
44 explicitly affected versions
5.4.0, 5.4.0-RC1, 5.4.0-RC2, 5.4.0-RC3, 5.4.0-RC4, 5.4.1, 5.4.10, 5.4.11, 5.4.12, 5.4.13, 5.4.14, 5.4.2, 5.4.3, 5.4.4, 5.4.5, 5.4.6, 5.4.7, 5.4.8, 5.4.9, 5.5.0, 5.5.0-RC1, 5.5.0-RC2, 5.5.0-RC3, 5.5.0-RC4, 5.5.1, 5.5.10, 5.5.11, 5.5.12, 5.5.13, 5.5.14, 5.5.15, 5.5.16, 5.5.2, 5.5.3, 5.5.4, 5.5.5, 5.5.6, 5.5.7, 5.5.8, 5.5.9, 5.6.0, 5.6.0-RC1, 5.6.0-RC2, 5.6.0-RC3
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "5.4.0-RC1"
},
{
"fixed": "5.6.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.4.0",
"5.4.0-RC1",
"5.4.0-RC2",
"5.4.0-RC3",
"5.4.0-RC4",
"5.4.1",
"5.4.10",
"5.4.11",
"5.4.12",
"5.4.13",
"5.4.14",
"5.4.2",
"5.4.3",
"5.4.4",
"5.4.5",
"5.4.6",
"5.4.7",
"5.4.8",
"5.4.9",
"5.5.0",
"5.5.0-RC1",
"5.5.0-RC2",
"5.5.0-RC3",
"5.5.0-RC4",
"5.5.1",
"5.5.10",
"5.5.11",
"5.5.12",
"5.5.13",
"5.5.14",
"5.5.15",
"5.5.16",
"5.5.2",
"5.5.3",
"5.5.4",
"5.5.5",
"5.5.6",
"5.5.7",
"5.5.8",
"5.5.9",
"5.6.0",
"5.6.0-RC1",
"5.6.0-RC2",
"5.6.0-RC3"
]
}References
- https://github.com/contao/contao/security/advisories/GHSA-7m47-r75r-cx8v
- https://nvd.nist.gov/vuln/detail/CVE-2025-57758
- https://github.com/contao/contao/commit/3f05c603e1c94d34819f837f060df5d66447d0d7
- https://contao.org/en/security-advisories/improper-access-control-in-the-back-end-voters
- https://github.com/contao/contao