Auth bypass in TYPO3

CVE-2022-23501

TYPO3 is an open source PHP based web content management system. In versions prior to 8.7.49, 9.5.38, 10.4.33, 11.5.20, and 12.1.1 TYPO3 is vulnerable to Improper Authentication. Restricting frontend login to specific users, organized in different storage folders (partitions), can be bypassed. A potential attacker might use this ambiguity in usernames to get access to a different account - however, credentials must be known to the adversary. This issue is patched in versions 8.7.49 ELTS, 9.5.38 ELTS, 10.4.33, 11.5.20, 12.1.1.

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (39.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2022-23501: held from 0.005 to 0.005.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000

Affected products

  • TYPO3 — versions >= 8.0.0, < 8.7.49, >= 9.0.0, < 9.5.38, >= 10.0.0, < 10.4.33

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2022-23501?
CVE-2022-23501 is a medium-severity vulnerability in TYPO3, classified under Improper Authentication. CVSS score: 5.9/10. Published 2022-12-14.
How severe is CVE-2022-23501?
Medium severity. CVSS v3 base score is 5.9 out of 10.