Information disclosure in the Contao backend
The advisory, in context
Impact
Back end users can manipulate the details view URL to show pages and articles that have not been enabled for them.
Patches
Update to Contao 4.4.46 or 4.8.6.
Workarounds
None.
References
https://contao.org/en/security-advisories/information-disclosure-in-the-back-end
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 4.0.0 before 4.4.46
Fixed in 4.4.46
81 explicitly affected versions
4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.1.0, 4.1.0-RC1, 4.1.0-beta1, 4.1.1, 4.1.2, 4.1.3, 4.2.0, 4.2.0-RC1, 4.2.0-beta1, 4.2.1, 4.2.2, 4.2.3, 4.2.4, 4.2.5, 4.3.0, 4.3.0-RC1, 4.3.1, 4.3.10, 4.3.11, 4.3.2, 4.3.3, 4.3.4, 4.3.5, 4.3.6, 4.3.7, 4.3.8, 4.3.9, 4.4.0, 4.4.0-RC1, 4.4.0-RC2, 4.4.0-beta1, 4.4.1, 4.4.10, 4.4.11, 4.4.12, 4.4.13, 4.4.14, 4.4.15, 4.4.16, 4.4.17, 4.4.18, 4.4.19, 4.4.2, 4.4.20, 4.4.21, 4.4.22, 4.4.23, 4.4.24, 4.4.25, 4.4.26, 4.4.27, 4.4.28, 4.4.29, 4.4.3, 4.4.30, 4.4.31, 4.4.32, 4.4.33, 4.4.34, 4.4.35, 4.4.36, 4.4.37, 4.4.38, 4.4.39, 4.4.4, 4.4.40, 4.4.41, 4.4.42, 4.4.43, 4.4.44, 4.4.45, 4.4.5, 4.4.6, 4.4.7, 4.4.8, 4.4.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "4.0.0"
},
{
"fixed": "4.4.46"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.0.0",
"4.0.1",
"4.0.2",
"4.0.3",
"4.0.4",
"4.1.0",
"4.1.0-RC1",
"4.1.0-beta1",
"4.1.1",
"4.1.2",
"4.1.3",
"4.2.0",
"4.2.0-RC1",
"4.2.0-beta1",
"4.2.1",
"4.2.2",
"4.2.3",
"4.2.4",
"4.2.5",
"4.3.0",
"4.3.0-RC1",
"4.3.1",
"4.3.10",
"4.3.11",
"4.3.2",
"4.3.3",
"4.3.4",
"4.3.5",
"4.3.6",
"4.3.7",
"4.3.8",
"4.3.9",
"4.4.0",
"4.4.0-RC1",
"4.4.0-RC2",
"4.4.0-beta1",
"4.4.1",
"4.4.10",
"4.4.11",
"4.4.12",
"4.4.13",
"4.4.14",
"4.4.15",
"4.4.16",
"4.4.17",
"4.4.18",
"4.4.19",
"4.4.2",
"4.4.20",
"4.4.21",
"4.4.22",
"4.4.23",
"4.4.24",
"4.4.25",
"4.4.26",
"4.4.27",
"4.4.28",
"4.4.29",
"4.4.3",
"4.4.30",
"4.4.31",
"4.4.32",
"4.4.33",
"4.4.34",
"4.4.35",
"4.4.36",
"4.4.37",
"4.4.38",
"4.4.39",
"4.4.4",
"4.4.40",
"4.4.41",
"4.4.42",
"4.4.43",
"4.4.44",
"4.4.45",
"4.4.5",
"4.4.6",
"4.4.7",
"4.4.8",
"4.4.9"
]
}From 4.5.0 before 4.8.6
Fixed in 4.8.6
53 explicitly affected versions
4.5.0, 4.5.1, 4.5.10, 4.5.11, 4.5.12, 4.5.13, 4.5.14, 4.5.2, 4.5.3, 4.5.4, 4.5.5, 4.5.6, 4.5.7, 4.5.8, 4.5.9, 4.6.0, 4.6.0-RC1, 4.6.0-RC2, 4.6.0-RC3, 4.6.1, 4.6.10, 4.6.11, 4.6.12, 4.6.13, 4.6.14, 4.6.2, 4.6.3, 4.6.4, 4.6.5, 4.6.6, 4.6.7, 4.6.8, 4.6.9, 4.7.0, 4.7.0-RC1, 4.7.0-RC2, 4.7.0-RC3, 4.7.0-RC4, 4.7.1, 4.7.2, 4.7.3, 4.7.4, 4.7.5, 4.7.6, 4.7.7, 4.8.0, 4.8.0-RC1, 4.8.0-RC2, 4.8.1, 4.8.2, 4.8.3, 4.8.4, 4.8.5
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "4.5.0"
},
{
"fixed": "4.8.6"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.5.0",
"4.5.1",
"4.5.10",
"4.5.11",
"4.5.12",
"4.5.13",
"4.5.14",
"4.5.2",
"4.5.3",
"4.5.4",
"4.5.5",
"4.5.6",
"4.5.7",
"4.5.8",
"4.5.9",
"4.6.0",
"4.6.0-RC1",
"4.6.0-RC2",
"4.6.0-RC3",
"4.6.1",
"4.6.10",
"4.6.11",
"4.6.12",
"4.6.13",
"4.6.14",
"4.6.2",
"4.6.3",
"4.6.4",
"4.6.5",
"4.6.6",
"4.6.7",
"4.6.8",
"4.6.9",
"4.7.0",
"4.7.0-RC1",
"4.7.0-RC2",
"4.7.0-RC3",
"4.7.0-RC4",
"4.7.1",
"4.7.2",
"4.7.3",
"4.7.4",
"4.7.5",
"4.7.6",
"4.7.7",
"4.8.0",
"4.8.0-RC1",
"4.8.0-RC2",
"4.8.1",
"4.8.2",
"4.8.3",
"4.8.4",
"4.8.5"
]
}From 4.0.0 before 4.4.46
Fixed in 4.4.46
24 explicitly affected versions
4.4.22, 4.4.23, 4.4.24, 4.4.25, 4.4.26, 4.4.27, 4.4.28, 4.4.29, 4.4.30, 4.4.31, 4.4.32, 4.4.33, 4.4.34, 4.4.35, 4.4.36, 4.4.37, 4.4.38, 4.4.39, 4.4.40, 4.4.41, 4.4.42, 4.4.43, 4.4.44, 4.4.45
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "4.0.0"
},
{
"fixed": "4.4.46"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.4.22",
"4.4.23",
"4.4.24",
"4.4.25",
"4.4.26",
"4.4.27",
"4.4.28",
"4.4.29",
"4.4.30",
"4.4.31",
"4.4.32",
"4.4.33",
"4.4.34",
"4.4.35",
"4.4.36",
"4.4.37",
"4.4.38",
"4.4.39",
"4.4.40",
"4.4.41",
"4.4.42",
"4.4.43",
"4.4.44",
"4.4.45"
]
}From 4.5.0 before 4.8.6
Fixed in 4.8.6
37 explicitly affected versions
4.5.13, 4.5.14, 4.6.0, 4.6.1, 4.6.10, 4.6.11, 4.6.12, 4.6.13, 4.6.14, 4.6.2, 4.6.3, 4.6.4, 4.6.5, 4.6.6, 4.6.7, 4.6.8, 4.6.9, 4.7.0, 4.7.0-RC1, 4.7.0-RC2, 4.7.0-RC3, 4.7.0-RC4, 4.7.1, 4.7.2, 4.7.3, 4.7.4, 4.7.5, 4.7.6, 4.7.7, 4.8.0, 4.8.0-RC1, 4.8.0-RC2, 4.8.1, 4.8.2, 4.8.3, 4.8.4, 4.8.5
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "4.5.0"
},
{
"fixed": "4.8.6"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.5.13",
"4.5.14",
"4.6.0",
"4.6.1",
"4.6.10",
"4.6.11",
"4.6.12",
"4.6.13",
"4.6.14",
"4.6.2",
"4.6.3",
"4.6.4",
"4.6.5",
"4.6.6",
"4.6.7",
"4.6.8",
"4.6.9",
"4.7.0",
"4.7.0-RC1",
"4.7.0-RC2",
"4.7.0-RC3",
"4.7.0-RC4",
"4.7.1",
"4.7.2",
"4.7.3",
"4.7.4",
"4.7.5",
"4.7.6",
"4.7.7",
"4.8.0",
"4.8.0-RC1",
"4.8.0-RC2",
"4.8.1",
"4.8.2",
"4.8.3",
"4.8.4",
"4.8.5"
]
}References
- https://github.com/contao/contao/security/advisories/GHSA-4mvc-qc5w-v5qr
- https://nvd.nist.gov/vuln/detail/CVE-2019-19712
- https://contao.org/en/news.html
- https://contao.org/en/security-advisories/information-disclosure-in-the-back-end.html
- https://github.com/FriendsOfPHP/security-advisories/blob/master/contao/contao/CVE-2019-19712.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/contao/core-bundle/CVE-2019-19712.yaml
- https://github.com/contao/contao