CVE-2020-26229

XML External Entity in Dashboard Widget

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.

Category

3.7
CVSS
Severity: Low
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.27%
Vendor Advisory typo3.org
Affected: TYPO3 TYPO3.CMS
Published at:
Updated at:

References

Link Tags
https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-q9cp-mc96-m4w2 third party advisory
https://typo3.org/security/advisory/typo3-core-sa-2020-012 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-26229?
CVE-2020-26229 has been scored as a low severity vulnerability.
How to fix CVE-2020-26229?
To fix CVE-2020-26229, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-26229 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-26229 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-26229?
CVE-2020-26229 affects TYPO3 TYPO3.CMS.
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