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XWiki missing authorization when accessing the wiki level attachments list and metadata via REST API

Moderate severity GitHub Reviewed Published Apr 30, 2025 in xwiki/xwiki-platform • Updated May 5, 2025

Package

maven org.xwiki.platform:xwiki-platform-rest-server (Maven)

Affected versions

>= 1.8.1, < 14.10.22
>= 15.0-rc-1, < 15.10.12
>= 16.0.0-rc-1, < 16.4.3
>= 16.5.0-rc-1, < 16.7.0

Patched versions

14.10.22
15.10.12
16.4.3
16.7.0

Description

Impact

Anyone can access the metadata of any attachment in the wiki using the wiki attachment REST endpoint. It's not filtering the result depending on current user rights, a not authenticated user could exploit this even in a totally private wiki.

To reproduce:

You get a list of attachments, while the expected result should be an empty list.

Patches

This vulnerability has been fixed in XWiki 14.10.22, 15.10.12, 16.7.0-rc-1 and 16.4.3.

Workarounds

We're not aware of any workaround except upgrading.

References

For more information

If you have any questions or comments about this advisory:

Attribution

Issue reported by Lukas Monert.

References

@tmortagne tmortagne published to xwiki/xwiki-platform Apr 30, 2025
Published to the GitHub Advisory Database Apr 30, 2025
Reviewed Apr 30, 2025
Published by the National Vulnerability Database Apr 30, 2025
Last updated May 5, 2025

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(12th percentile)

Weaknesses

CVE ID

CVE-2025-46554

GHSA ID

GHSA-r5cr-xm48-97xp

Source code

Credits

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