CVE-2023-45138: Change Request Application vulnerable to XSS and remote code execution through change request title

Severity: critical (CVSS 9.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 71.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-10-12 · updated 2026-06-17
Weakness: CWE-79

Description

Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly. Starting in version 0.11 and prior to version 1.9.2, it's possible for a user without any specific right to perform script injection and remote code execution just by inserting an appropriate title when creating a new Change Request. This vulnerability is particularly critical as Change Request aims at being created by user without any particular rights. The vulnerability has been fixed in Change Request 1.9.2. It's possible to workaround the issue without upgrading by editing the document `ChangeRequest.Code.ChangeRequestSheet` and by performing the same change as in the fix commit.

Affected products

xwiki-contrib application-changerequest: from 0.11 before 1.9.2 — fixed in 1.9.2

How to fix

Upgrade to a fixed version: xwiki-contrib application-changerequest 1.9.2. Check the vendor advisory for mitigations.

References

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