Cleartext storage of session identifier
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-312.
Summary
TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 9.5.23 and 10.4.10 user session identifiers were stored in cleartext - without processing with additional cryptographic hashing algorithms. This vulnerability cannot be exploited directly and occurs in combination with a chained attack - like for instance SQL injection in any other component of the system. Update to TYPO3 versions 9.5.23 or 10.4.10 that fix the problem described.
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 | TYPO3.CMS | 9.0.0 to before 9.5.23; 10.0.0 to before 10.4.10 | 9.5.23, 10.4.10 | Patch available | CNA |
| — | typo3/cms-core (Packagist) | 9.0.0 to before 9.5.23 | 9.5.23 | Patch available | GHSA-954j-f27r-cj52 |
| — | typo3/cms-core (Packagist) | 10.0.0 to before 10.4.10 | 10.4.10 | Patch available | GHSA-954j-f27r-cj52 |
| — | typo3/cms-core (Packagist) | 8.7.0 to before 8.7.38 | 8.7.38 | Patch available | GHSA-954j-f27r-cj52 |
| — | typo3/cms (Packagist) | 10.0.0 to before 10.4.10 | 10.4.10 | Patch available | GHSA-954j-f27r-cj52 |
| — | typo3/cms (Packagist) | 9.0.0 to before 9.5.23 | 9.5.23 | Patch available | GHSA-954j-f27r-cj52 |
| — | typo3/cms (Packagist) | 8.7.0 to before 8.7.38 | 8.7.38 | Patch available | GHSA-954j-f27r-cj52 |
- TYPO3.CMS VendorTYPO3 Affected 9.0.0 to before 9.5.23; 10.0.0 to before 10.4.10 Fixed in 9.5.23, 10.4.10 Patch available CNA
- typo3/cms-core (Packagist) Vendor— Affected 9.0.0 to before 9.5.23 Fixed in 9.5.23 Patch available GHSA-954j-f27r-cj52
- typo3/cms-core (Packagist) Vendor— Affected 10.0.0 to before 10.4.10 Fixed in 10.4.10 Patch available GHSA-954j-f27r-cj52
- typo3/cms-core (Packagist) Vendor— Affected 8.7.0 to before 8.7.38 Fixed in 8.7.38 Patch available GHSA-954j-f27r-cj52
- typo3/cms (Packagist) Vendor— Affected 10.0.0 to before 10.4.10 Fixed in 10.4.10 Patch available GHSA-954j-f27r-cj52
- typo3/cms (Packagist) Vendor— Affected 9.0.0 to before 9.5.23 Fixed in 9.5.23 Patch available GHSA-954j-f27r-cj52
- typo3/cms (Packagist) Vendor— Affected 8.7.0 to before 8.7.38 Fixed in 8.7.38 Patch available GHSA-954j-f27r-cj52
Remediation
- Fix · CNA TYPO3.CMS (TYPO3) Fixed in 9.5.23, 10.4.10
- Fix · GHSA-954j-f27r-cj52 typo3/cms-core (Packagist) Fixed in 9.5.23 Advisory →
- Fix · GHSA-954j-f27r-cj52 typo3/cms-core (Packagist) Fixed in 10.4.10 Advisory →
- Fix · GHSA-954j-f27r-cj52 typo3/cms-core (Packagist) Fixed in 8.7.38 Advisory →
- Fix · GHSA-954j-f27r-cj52 typo3/cms (Packagist) Fixed in 10.4.10 Advisory →
- Fix · GHSA-954j-f27r-cj52 typo3/cms (Packagist) Fixed in 9.5.23 Advisory →
- Fix · GHSA-954j-f27r-cj52 typo3/cms (Packagist) Fixed in 8.7.38 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-26228
- 2026-10-03 Alias added: GHSA-954j-f27r-cj52
References
Advisory 3
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-2020-26228 · CVE Program
- CVE-2020-26228 · NVD
- FIRST EPSS
- GHSA-954j-f27r-cj52 · GitHub Advisory Database · CC BY 4.0
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