TYPO3 Cross-Site Scripting in Frontend User Login
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
- —
- Attack complexity
- —
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- —
- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub. Impact type from CWE-79.
Summary
Failing to properly encode user input, login status display is vulnerable to cross-site scripting in the website frontend. A valid user account is needed in order to exploit this vulnerability - either a backend user or a frontend user having the possibility to modify their user profile. Template patterns that are affected are - ###FEUSER_[fieldName]### using system extension felogin - <!--###USERNAME###--> for regular frontend rendering (pattern can be defined individually using TypoScript setting config.USERNAME_substToken)
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | typo3/cms (Packagist) | 7.0.0 to before 7.6.32 | 7.6.32 | Patch available | GHSA-2rcw-9hrm-8q7q |
| — | typo3/cms (Packagist) | 8.0.0 to before 8.7.21 | 8.7.21 | Patch available | GHSA-2rcw-9hrm-8q7q |
| — | typo3/cms (Packagist) | 9.0.0 to before 9.5.2 | 9.5.2 | Patch available | GHSA-2rcw-9hrm-8q7q |
- typo3/cms (Packagist) Vendor— Affected 7.0.0 to before 7.6.32 Fixed in 7.6.32 Patch available GHSA-2rcw-9hrm-8q7q
- typo3/cms (Packagist) Vendor— Affected 8.0.0 to before 8.7.21 Fixed in 8.7.21 Patch available GHSA-2rcw-9hrm-8q7q
- typo3/cms (Packagist) Vendor— Affected 9.0.0 to before 9.5.2 Fixed in 9.5.2 Patch available GHSA-2rcw-9hrm-8q7q
Remediation
- Fix · GHSA-2rcw-9hrm-8q7q typo3/cms (Packagist) Fixed in 7.6.32 Advisory →
- Fix · GHSA-2rcw-9hrm-8q7q typo3/cms (Packagist) Fixed in 8.7.21 Advisory →
- Fix · GHSA-2rcw-9hrm-8q7q typo3/cms (Packagist) Fixed in 9.5.2 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-2rcw-9hrm-8q7q
References
Other 6
- https://github.com/TYPO3/typo3/commit/1c85fe70269e2ff8ecf0b6d5f16550c6cd0ddc78
- https://github.com/TYPO3/typo3/commit/373bec5d7d415f0764ebbadc7970610dc26da068
- https://github.com/TYPO3/typo3/commit/e4143195e1451630f058a58ab62d92135948a927
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/2018-12-11-3.yaml
- https://github.com/TYPO3/typo3
- https://typo3.org/security/advisory/typo3-core-sa-2018-008
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences