Description

Papermerge Core through 3.5.3 contains a missing authorization vulnerability that allows authenticated users to list other groups' tags and document types by supplying a group_id parameter. Attackers who know a group's UUID can query GET /tags/all or GET /document-types/all, which skip the user_belongs_to check, to disclose metadata of groups they do not belong to.

Related CPE's

Could not find any relations

References

https://github.com/papermerge/papermerge-core/blob/3.5.3/papermerge/core/features/document_types/router.py#L37-L62

https://github.com/papermerge/papermerge-core/blob/3.5.3/papermerge/core/features/tags/router.py#L39-L64

https://github.com/papermerge/papermerge-core/commit/0fd469102b05b5ebeb5ee39b3f73ff76991ab269

https://github.com/papermerge/papermerge-core/issues/1291

https://www.vulncheck.com/advisories/papermerge-core-through-3.5.3-missing-authorization-via-tags-all-and-document-types-all

Weaknesses

[email protected]

Secondary
CWE-862

CVSS impact metrics

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

3.1 · Low

Information

Source identifier

[email protected]

Vulnerability status

Deferred

Published

2026-10-14T15:17:14.973Z

2 hours ago

Last modified

2026-10-14T17:18:26.037Z

15 minutes ago