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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXE5Y3AtbWM5Ni1tNHcy
XML External Entity in Dashboard Widget
It has been discovered that 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 that fixes the problem described.Permalink: https://github.com/advisories/GHSA-q9cp-mc96-m4w2
Source: GitHub Advisory Database
Published: almost 3 years ago
Updated: 9 months ago
CVSS Score: 3.7
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:L
Identifiers: GHSA-q9cp-mc96-m4w2, CVE-2020-26229
Fixed in: 10.4.10