What’s Vulnerable › Vulnerabilities

CVE-2022-36105: User Enumeration via Response Timing in TYPO3

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-09-13 · updated 2026-06-17
• Weakness: CWE-203

Description

TYPO3 is an open source PHP based web content management system released under the GNU GPL. It has been discovered that observing response time during user authentication (backend and frontend) can be used to distinguish between existing and non-existing user accounts. Extension authors of 3rd party TYPO3 extensions providing a custom authentication service should check if the extension is affected by the described problem. Affected extensions must implement new `MimicServiceInterface::mimicAuthUser`, which simulates corresponding times regular processing would usually take. Update to TYPO3 version 7.6.58 ELTS, 8.7.48 ELTS, 9.5.37 ELTS, 10.4.32 or 11.5.16 that fix this problem. There are no known workarounds for this issue.

Affected products

• typo3: from 7.0.0 through 7.6.57; from 8.0.0 through 8.7.47; from 9.0.0 through 9.5.36; from 10.0.0 through 10.4.31; from 11.0.0 through 11.5.15

References

• https://github.com/TYPO3/typo3/commit/f8b83ce15d4ea275a5a5e564e5d324242f7937b6
• https://github.com/TYPO3/typo3/security/advisories/GHSA-m392-235j-9r7r
• https://typo3.org/security/advisory/typo3-core-sa-2022-007
• https://github.com/TYPO3/typo3/commit/f8b83ce15d4ea275a5a5e564e5d324242f7937b6
• https://github.com/TYPO3/typo3/security/advisories/GHSA-m392-235j-9r7r
• https://typo3.org/security/advisory/typo3-core-sa-2022-007

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