CVE-2025-27791
Description
Collabora Online is a collaborative online office suite based on LibreOffice technology. In versions prior to 24.04.12.4, 23.05.19, and 22.05.25, there is a path traversal flaw in handling the CheckFileInfo BaseFileName field returned from WOPI servers. This allows for a file to be written anywhere the uid running Collabora Online can write, if such a response was supplied by a malicious WOPI server. By combining this flaw with a Time of Check, Time of Use DNS lookup issue with a WOPI server address under attacker control, it is possible to present such a response to be processed by a Collabora Online instance. This issue has been patched in versions 24.04.13.1, 23.05.19, and 22.05.25.
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Affected products
21.6.0-0, 1.6.0-4-CODE, 1.6.2-1, …+ 1 more
- (no CPE)range: 1.6.0-0, 1.6.0-4-CODE, 1.6.2-1, …
- (no CPE)range: <24.04.12.4, <23.05.19, <22.05.25
Patches
Vulnerability mechanics
References
1News mentions
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