CVE-2023-24814 — TYPO3 is a free and open source Content Management Framework released under the

TYPO3 is a free and open source Content Management Framework released under the GNU General Public License. In affected versions the TYPO3 core component `GeneralUtility::getIndpEnv()` uses the unfiltered server environment variable `PATH_INFO`, which allows attackers to inject m

01What is this vulnerability?

TYPO3 is a free and open source Content Management Framework released under the GNU General Public License. In affected versions the TYPO3 core component `GeneralUtility::getIndpEnv()` uses the unfiltered server environment variable `PATH_INFO`, which allows attackers to inject malicious content. In combination with the TypoScript setting `config.absRefPrefix=auto`, attackers can inject malicious…

02Affected products

Vendor	Product	Versions
TYPO3	typo3	>= 8.7.0, < 8.7.51, >= 9.0.0, < 9.5.40, >= 10.0.0, < 10.4.36, 11.0.0, < 11.5.23, >= 12.0.0, < 12.2.0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-02-07T18:14:29.388Z
• Last modified: 2025-03-10T21:15:33.863Z

09References

• github.com — https://github.com/TYPO3/typo3/security/advisories/GHSA-r4f8-f93x-5qh3
• github.com — https://github.com/TYPO3/typo3/commit/0005a6fd86ab97eff8bf2e3a5828bf0e7cb6263a
• docs.typo3.org — https://docs.typo3.org/m/typo3/reference-typoscript/main/en-us/Setup/Config/Inde…
• github.com — https://github.com/TYPO3/typo3/blob/v11.5.22/typo3/sysext/core/Classes/Utility/G…
• github.com — https://github.com/TYPO3/typo3/blob/v11.5.22/typo3/sysext/frontend/Classes/Contr…
• typo3.org — https://typo3.org/security/advisory/typo3-core-sa-2023-001
• typo3.org — https://typo3.org/security/advisory/typo3-psa-2023-001