CVE-2023-46743: The same file cannot be opened with different rights

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-11-09 · updated 2026-06-17
Weakness: CWE-276

Description

application-collabora is an integration of Collabora Online in XWiki. As part of the application use cases, depending on the rights that a user has over a document, they should be able to open the office attachments files in view or edit mode. Currently, if a user opens an attachment file in edit mode in collabora, this right will be preserved for all future users, until the editing session is closes, even if some of them have only view right. Collabora server is the one issuing this request and it seems that the `userCanWrite` query parameter is cached, even if, for example, token is not. This issue has been patched in version 1.3.

Affected products

xwikisas application-collabora: before 1.3 — fixed in 1.3

How to fix

Upgrade to a fixed version: xwikisas application-collabora 1.3. Check the vendor advisory for mitigations.

References

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