CVE-2020-26228
HIGH8.1EPSS 0.18%Cleartext storage of session identifier
Published: 11/23/2020Modified: 3/13/2026
Description
User session identifiers were stored in cleartext - without processing of 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. ### Solution Update to TYPO3 versions 9.5.23 or 10.4.10 that fix the problem described. ### Credits Thanks to TYPO3 security team member Helmut Hummel who reported this issue and to TYPO3 core & security team members Benni Mack & Oliver Hader as well as TYPO3 contributor Markus Klein who fixed the issue.
Affected packages (3)
- Bitnami/typo3>= 9.0.0, < 9.5.23, >= 10.0.0, < 10.4.10
- Packagist/typo3/cms>= 10.0.0, < 10.4.10
- Packagist/typo3/cms-core>= 9.0.0, < 9.5.23
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
References (5)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2020-26228
- WEBhttps://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2020-26228.yaml
- WEBhttps://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2020-26228.yaml
- WEBhttps://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-954j-f27r-cj52
- WEBhttps://typo3.org/security/advisory/typo3-core-sa-2020-011