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org.xwiki.contrib:discussions-server has Cross-Site Request Forgery (CSRF) issue that makes it possible to delete messages

Moderate severity GitHub Reviewed Published Jul 23, 2026 in xwiki-contrib/application-discussions • Updated Jul 27, 2026

Package

maven org.xwiki.contrib:discussions-server (Maven)

Affected versions

< 2.0-rc-1

Patched versions

2.0-rc-1

Description

Impact

It's possible to forge a request to delete a message.

Patches

The problem has been patched in version 2.0-rc-1 of Discussion Extension.

Workarounds

There's no easy workaround except upgrading.

References

https://jira.xwiki.org/browse/DISCUSSION-22

For more information

If you have any questions or comments about this advisory:

References

@surli surli published to xwiki-contrib/application-discussions Jul 23, 2026
Published to the GitHub Advisory Database Jul 27, 2026
Reviewed Jul 27, 2026
Last updated Jul 27, 2026

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
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
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:R/S:U/C:N/I:H/A:N

EPSS score

Weaknesses

Cross-Site Request Forgery (CSRF)

The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor. Learn more on MITRE.

CVE ID

CVE-2023-37465

GHSA ID

GHSA-4j38-rw27-97gx

Source code

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