CVE-2011-4903 json
Typo3 XSS in RemoveXSS function
published 2019-11-06 7 y ago modified 2026-06-16 4 mo ago also GHSA-q22w-r5qq-v3wf , EUVD-2022-1806
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 57%
- public exploits
- 0
- none known
Summary
Cross-site Scripting (XSS) in TYPO3 before 4.3.12, 4.4.x before 4.4.9, and 4.5.x before 4.5.4 allows remote attackers to inject arbitrary web script or HTML via the RemoveXSS function.
Patch / fix
- packagist typo3/cms 4.3.12, 4.4.9, 4.5.4
- typo3 typo3 4.3.12, 4.4.9, 4.5.4
Exploit prediction
0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | typo3/cms | <4.3.12 >=4.4.0, <4.4.9 >=4.5.0, <4.5.4 |
4.3.12 4.4.9 4.5.4 |
Affected products
- TYPO3 TYPO3
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
typo3.org
/security/advisory/typo3-core-sa-2011-001/#XSS
web, vendor-advisory
-
security-tracker.debian.org
/tracker/CVE-2011-4903
web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2011-4903
advisory
-
github.com
/TYPO3/typo3
package
Sources
- CVE List CVE-2011-4903
- GitHub Advisory GHSA-q22w-r5qq-v3wf
- NVD CVE-2011-4903
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.