TYPO3 CMS has Cross-Site Scripting in Indexed Search
The advisory, in context
Problem
Editors with access to create or modify page content were able to include HTML markup in page titles that were stored in the search index without sanitization. When displayed in frontend search results via the Indexed Search plugin, these titles were rendered without proper output encoding, resulting in a Cross-Site Scripting vulnerability.
Solution
Update to TYPO3 versions 13.4.31 LTS, 14.3.3 LTS that fix the problem described.
Credits
TYPO3 CMS thanks Jan Kahmen and Sanjay Singh Jhala for reporting this issue, and to TYPO3 core & security team member Oliver Hader for fixing it.
Resources
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 13.0.0 before 13.4.31
Fixed in 13.4.31
39 explicitly affected versions
v13.0.0, v13.0.1, v13.1.0, v13.1.1, v13.2.0, v13.2.1, v13.3.0, v13.3.1, v13.4.0, v13.4.1, v13.4.10, v13.4.11, v13.4.12, v13.4.13, v13.4.14, v13.4.15, v13.4.16, v13.4.17, v13.4.18, v13.4.19, v13.4.2, v13.4.20, v13.4.21, v13.4.22, v13.4.23, v13.4.24, v13.4.25, v13.4.26, v13.4.27, v13.4.28, v13.4.29, v13.4.3, v13.4.30, v13.4.4, v13.4.5, v13.4.6, v13.4.7, v13.4.8, v13.4.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "13.0.0"
},
{
"fixed": "13.4.31"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v13.0.0",
"v13.0.1",
"v13.1.0",
"v13.1.1",
"v13.2.0",
"v13.2.1",
"v13.3.0",
"v13.3.1",
"v13.4.0",
"v13.4.1",
"v13.4.10",
"v13.4.11",
"v13.4.12",
"v13.4.13",
"v13.4.14",
"v13.4.15",
"v13.4.16",
"v13.4.17",
"v13.4.18",
"v13.4.19",
"v13.4.2",
"v13.4.20",
"v13.4.21",
"v13.4.22",
"v13.4.23",
"v13.4.24",
"v13.4.25",
"v13.4.26",
"v13.4.27",
"v13.4.28",
"v13.4.29",
"v13.4.3",
"v13.4.30",
"v13.4.4",
"v13.4.5",
"v13.4.6",
"v13.4.7",
"v13.4.8",
"v13.4.9"
]
}From 14.0.0 before 14.3.3
Fixed in 14.3.3
9 explicitly affected versions
v14.0.0, v14.0.1, v14.0.2, v14.1.0, v14.1.1, v14.2.0, v14.3.0, v14.3.1, v14.3.2
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "14.0.0"
},
{
"fixed": "14.3.3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v14.0.0",
"v14.0.1",
"v14.0.2",
"v14.1.0",
"v14.1.1",
"v14.2.0",
"v14.3.0",
"v14.3.1",
"v14.3.2"
]
}From 13.0.0 before 13.4.31
Fixed in 13.4.31
38 explicitly affected versions
v13.0.0, v13.0.1, v13.1.0, v13.1.1, v13.2.1, v13.3.0, v13.3.1, v13.4.0, v13.4.1, v13.4.10, v13.4.11, v13.4.12, v13.4.13, v13.4.14, v13.4.15, v13.4.16, v13.4.17, v13.4.18, v13.4.19, v13.4.2, v13.4.20, v13.4.21, v13.4.22, v13.4.23, v13.4.24, v13.4.25, v13.4.26, v13.4.27, v13.4.28, v13.4.29, v13.4.3, v13.4.30, v13.4.4, v13.4.5, v13.4.6, v13.4.7, v13.4.8, v13.4.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "13.0.0"
},
{
"fixed": "13.4.31"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v13.0.0",
"v13.0.1",
"v13.1.0",
"v13.1.1",
"v13.2.1",
"v13.3.0",
"v13.3.1",
"v13.4.0",
"v13.4.1",
"v13.4.10",
"v13.4.11",
"v13.4.12",
"v13.4.13",
"v13.4.14",
"v13.4.15",
"v13.4.16",
"v13.4.17",
"v13.4.18",
"v13.4.19",
"v13.4.2",
"v13.4.20",
"v13.4.21",
"v13.4.22",
"v13.4.23",
"v13.4.24",
"v13.4.25",
"v13.4.26",
"v13.4.27",
"v13.4.28",
"v13.4.29",
"v13.4.3",
"v13.4.30",
"v13.4.4",
"v13.4.5",
"v13.4.6",
"v13.4.7",
"v13.4.8",
"v13.4.9"
]
}From 14.0.0 before 14.3.3
Fixed in 14.3.3
9 explicitly affected versions
v14.0.0, v14.0.1, v14.0.2, v14.1.0, v14.1.1, v14.2.0, v14.3.0, v14.3.1, v14.3.2
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "14.0.0"
},
{
"fixed": "14.3.3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v14.0.0",
"v14.0.1",
"v14.0.2",
"v14.1.0",
"v14.1.1",
"v14.2.0",
"v14.3.0",
"v14.3.1",
"v14.3.2"
]
}References
- https://github.com/TYPO3/typo3/security/advisories/GHSA-cg75-qfg2-w9hj
- https://nvd.nist.gov/vuln/detail/CVE-2026-47348
- https://github.com/TYPO3/typo3/commit/2e96dd0e9fab7ad877b741fb9f6fc645b4270a3e
- https://github.com/TYPO3/typo3/commit/8004b91a5951cfe01dda8554f77d0daa82d6b899
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2026-47348.yaml
- https://github.com/TYPO3/typo3
- https://typo3.org/security/advisory/typo3-core-sa-2026-010