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.

Reserved 2025-03-06 | Published 2025-04-15 | Updated 2025-04-15 | Assigner GitHub_M

Problem types

CWE-23: Relative Path Traversal

Product status

>= 24.04.1.1, < 24.04.13.1
affected

>= 23.05.0, < 23.05.19
affected

< 22.05.25
affected

References

github.com/...online/security/advisories/GHSA-9j32-gg3j-8w25

cve.org (CVE-2025-27791)

nvd.nist.gov (CVE-2025-27791)

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