Observable Response Discrepancy in TYPO3 CMS
Priority LOW 20CWE-204Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-204.
Summary
In TYPO3 CMS versions 10.4.0 and 10.4.1, it has been discovered that time-based attacks can be used with the password reset functionality for backend users. This allows an attacker to mount user enumeration based on email addresses assigned to backend user accounts. This has been fixed in 10.4.2.
Why it matters now
EPSS 0.01218 68th percentileScored 2026-11-07
Fix Fixed typo3/cms-core (Packagist): 10.4.2typo3/cms (Packagist): 10.4.2
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 | TYPO3 CMS | 10.4.0 – 10.4.1 | — | No fix listed | CNA |
| — | typo3/cms-core (Packagist) | 10.0.0 to before 10.4.2 | 10.4.2 | Patch available | GHSA-347x-877p-hcwx |
| — | typo3/cms (Packagist) | 10.0.0 to before 10.4.2 | 10.4.2 | Patch available | GHSA-347x-877p-hcwx |
- TYPO3 CMS VendorTYPO3 Affected 10.4.0 – 10.4.1 Fixed in — No fix listed CNA
- typo3/cms-core (Packagist) Vendor— Affected 10.0.0 to before 10.4.2 Fixed in 10.4.2 Patch available GHSA-347x-877p-hcwx
- typo3/cms (Packagist) Vendor— Affected 10.0.0 to before 10.4.2 Fixed in 10.4.2 Patch available GHSA-347x-877p-hcwx
Remediation
- Fix · GHSA-347x-877p-hcwx typo3/cms-core (Packagist) Fixed in 10.4.2 Advisory →
- Fix · GHSA-347x-877p-hcwx typo3/cms (Packagist) Fixed in 10.4.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-11063
- 2026-10-03 Alias added: GHSA-347x-877p-hcwx
References
Advisory 2
Other 6
- https://github.com/TYPO3/typo3/security/advisories/GHSA-347x-877p-hcwx
- https://github.com/TYPO3/typo3/commit/14929b98ecda0ce67329b0f25ca7c01ee85df574
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2020-11063.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2020-11063.yaml
- https://github.com/TYPO3/typo3
- https://typo3.org/security/advisory/typo3-core-sa-2020-001
More Typo3 vulnerabilities
- TI-2023-10314 Persisted Cross-Site Scripting in Frontend Rendering in typo3 CVSS 3.1HIGH 8.8
- TI-2010-03538 The jumpUrl (aka access tracking) implementation in tslib/class.tslib_fe.php in TYPO3… CVSS 2.0HIGH 7.1
- TI-2009-00775 The jumpUrl mechanism in class.tslib_fe.php in TYPO3 3.3.x through 3.8.x, 4.0 before… CVSS 2.0MEDIUM 5.0
- TI-2009-00241 The Indexed Search Engine (indexed_search) system extension in TYPO3 4.0.0 through 4.0.9… CVSS 2.0HIGH 10.0
- TI-2020-08940 Improperly Controlled Modification of Dynamically-Determined Object Attributes in TYPO3 CMS CVSS 3.1CRITICAL 10.0
- TI-2011-03994 Improper authentication in TYPO3 CVSS 3.1CRITICAL 9.8
Sources
- CVE-2020-11063 · CVE Program
- CVE-2020-11063 · NVD
- FIRST EPSS
- GHSA-347x-877p-hcwx · GitHub Advisory Database · CC BY 4.0
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