CVE-2020-26229: 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…

PriorityP414low3.7CVSS 3.1

AVNACHPRLUIRSUCLINAL

EPSS

0.64%

45.9th percentile

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.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
typo3	cms	>= 10.0.0 < 10.4.10	10.4.10
typo3	cms-core	>= 10.0.0 < 10.4.10	10.4.10
typo3	typo3	>= 10.0.0 < 10.4.10	10.4.10
typo3	typo3.cms	—	—

CVSS provenance

nvdv3.13.7LOWCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:L

nvdv2.03.6LOWAV:N/AC:H/Au:S/C:P/I:N/A:P

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.