Vulnerability Description
TYPO3 is an open source PHP based web content management system. In TYPO3 from version 10.4.0, and before version 10.4.10, RSS widgets are susceptible to XML external entity processing. This vulnerability is reasonable, but is theoretical - it was not possible to actually reproduce the vulnerability with current PHP versions of supported and maintained system distributions. At least with libxml2 version 2.9, the processing of XML external entities is disabled per default - and cannot be exploited. Besides that, a valid backend user account is needed. Update to TYPO3 version 10.4.10 to fix the problem described.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Typo3 | Typo3 | >= 10.0.0, < 10.4.10 |
Related Weaknesses (CWE)
References
- https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-q9cp-mc96-m4w2Third Party Advisory
- https://typo3.org/security/advisory/typo3-core-sa-2020-012Vendor Advisory
- https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-q9cp-mc96-m4w2Third Party Advisory
- https://typo3.org/security/advisory/typo3-core-sa-2020-012Vendor Advisory
FAQ
What is CVE-2020-26229?
CVE-2020-26229 is a vulnerability with a CVSS score of 3.7 (LOW). TYPO3 is an open source PHP based web content management system. In TYPO3 from version 10.4.0, and before version 10.4.10, RSS widgets are susceptible to XML external entity processing. This vulnerabi...
How severe is CVE-2020-26229?
CVE-2020-26229 has been rated LOW with a CVSS base score of 3.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-26229?
Check the references section above for vendor advisories and patch information. Affected products include: Typo3 Typo3.