What is CVE-2026-6553?

CVE-2026-6553 is a high-severity vulnerability in Typo3, classified under Cleartext Storage of Sensitive Information. CVSS score: 7.5/10. Published 2026-04-21.

How severe is CVE-2026-6553?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Typo3

CVE-2026-6553

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.

EPSS: 0.000 (5.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Typo3 — versions 14.2.0
Typo3 Cms — versions 14.2.0

Weakness classification (CWE)

CWE-312 — Cleartext Storage of Sensitive Information

References

f4fb688c-4412-4426-b4b8-421ecf27b14a (vendor-advisory, Vendor Advisory)
Git commit of main branch (Patch, patch)

Frequently asked questions

What is CVE-2026-6553?: CVE-2026-6553 is a high-severity vulnerability in Typo3, classified under Cleartext Storage of Sensitive Information. CVSS score: 7.5/10. Published 2026-04-21.
How severe is CVE-2026-6553?: High severity. CVSS v3 base score is 7.5 out of 10.