Description
The OOXML parsing of the file indexer does not disable external entity resolution. A crafted xlsx or pptx document placed in an indexed directory can cause local files to be read or outbound HTTP requests to be performed, with the retrieved content being written to the search index.
Problem types
CWE-611 Improper Restriction of XML External Entity Reference
Product status
7.0.0 (semver) before 7.0.1
6.0.0 (semver) before 6.6.1
Any version before 5.6.2
Credits
Seungbin Yang
Christian Bülter
References
typo3.org/security/advisory/typo3-ext-sa-2026-011