Vulnerability · Published Apr 21, 2026 · Assigned by TYPO3
CVE-2026-6553TYPO3 CMS Stores Cleartext Password in User Settings Module
High 7.3
In plain English
A high-severity security flaw in TYPO3 CMS from TYPO3. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)7.3High
Exploit odds (30 days)0.2%top 94.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Changing backend users' passwords via the user settings module results in storing the cleartext password in the uc and user_settings fields of the be_users database table. This issue affects TYPO3 CMS version 14.2.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | typo3/cms-backend | 14.3.0 | GHSA-xvv6-p4wf-mvx7 |
Affected products (as reported)
Weakness: CWE-312 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H
References
- https://typo3.org/security/advisory/typo3-core-sa-2026-005 vendor-advisory
- Git commit of main branch patch