TYPO3 CMS Authentication Bypass vulnerability
Priority LOW 38CWE-287Published · Updated
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
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- Attack complexity
- —
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- —
- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub. Impact type from CWE-287.
Summary
It has been discovered that TYPO3’s Salted Password system extension (which is a mandatory system component) is vulnerable to Authentication Bypass when using hashing methods which are related by PHP class inheritance. In standard TYPO3 core distributions stored passwords using the blowfish hashing algorithm can be overridden when using MD5 as the default hashing algorithm by just knowing a valid username. Per default the Portable PHP hashing algorithm (PHPass) is used which is not vulnerable.
Why it matters now
Fix Fixed typo3/cms-core (Packagist): 8.7.17, 9.3.2, 7.6.30
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-core (Packagist) | 8.0.0 to before 8.7.17 | 8.7.17 | Patch available | GHSA-x4rj-f7m6-42c3 |
| — | typo3/cms-core (Packagist) | 9.0.0 to before 9.3.2 | 9.3.2 | Patch available | GHSA-x4rj-f7m6-42c3 |
| — | typo3/cms-core (Packagist) | 7.0.0 to before 7.6.30 | 7.6.30 | Patch available | GHSA-x4rj-f7m6-42c3 |
- typo3/cms-core (Packagist) Vendor— Affected 8.0.0 to before 8.7.17 Fixed in 8.7.17 Patch available GHSA-x4rj-f7m6-42c3
- typo3/cms-core (Packagist) Vendor— Affected 9.0.0 to before 9.3.2 Fixed in 9.3.2 Patch available GHSA-x4rj-f7m6-42c3
- typo3/cms-core (Packagist) Vendor— Affected 7.0.0 to before 7.6.30 Fixed in 7.6.30 Patch available GHSA-x4rj-f7m6-42c3
Remediation
- Fix · GHSA-x4rj-f7m6-42c3 typo3/cms-core (Packagist) Fixed in 8.7.17 Advisory →
- Fix · GHSA-x4rj-f7m6-42c3 typo3/cms-core (Packagist) Fixed in 9.3.2 Advisory →
- Fix · GHSA-x4rj-f7m6-42c3 typo3/cms-core (Packagist) Fixed in 7.6.30 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-x4rj-f7m6-42c3
References
Sources
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