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.

Published 2026-04-21 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.003 (18.0th percentile), scored 2026-10-22.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

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)
f4fb688c-4412-4426-b4b8-421ecf27b14a (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.