CVE-2023-29525

Name: CVE-2023-29525
Creator: NVD / NIST
Published: 2023-04-19T00:15:09.127+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 77.75%

Last modified Jun 17, 2026

CVE-2023-29525 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Affected versions of xwiki are subject to code injection in the `since` parameter of the `/xwiki/bin/view/XWiki/Notifications/Code/LegacyNotificationAdministration` endpoint. EPSS estimates a 77.75% chance of exploitation in the next 30 days.

Description

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Affected versions of xwiki are subject to code injection in the `since` parameter of the `/xwiki/bin/view/XWiki/Notifications/Code/LegacyNotificationAdministration` endpoint. This provides an XWiki syntax injection attack via the since-parameter, allowing privilege escalation from view to programming rights and subsequent code execution privilege. The vulnerability has been patched in XWiki 15.0-rc-1, 14.10.3, 14.4.8 and 14.10.3. Users are advised to upgrade. Users unable to upgrade may modify the page `XWiki.Notifications.Code.LegacyNotificationAdministration` to add the missing escaping. For versions < 14.6-rc-1 a workaround is to modify the file `<xwikiwebapp>/templates/distribution/eventmigration.wiki` to add the missing escaping.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

77.75%

99.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-74

Affected Software

Vendor	Product	Versions
Xwiki	Xwiki	< 14.4.8
Xwiki	Xwiki	>= 14.5, < 14.10.3

References

https://github.com/xwiki/xwiki-platform/commit/6d74e2e4aa03d19f0be385ab63ae9e0f0e90a766Patch
https://github.com/xwiki/xwiki-platform/commit/8e7c7f90f2ddaf067cb5b83b181af41513028754#diff-4e13f4ee4a42938bf1201b7ee71ca32edeacba22559daf0bcb89d534e0225949R70Patch
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-jgg7-w2rj-58cjExploit, Patch, Vendor Advisory
https://jira.xwiki.org/browse/XWIKI-20287Exploit, Issue Tracking, Patch, Vendor Advisory
https://github.com/xwiki/xwiki-platform/commit/6d74e2e4aa03d19f0be385ab63ae9e0f0e90a766Patch
https://github.com/xwiki/xwiki-platform/commit/8e7c7f90f2ddaf067cb5b83b181af41513028754#diff-4e13f4ee4a42938bf1201b7ee71ca32edeacba22559daf0bcb89d534e0225949R70Patch
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-jgg7-w2rj-58cjExploit, Patch, Vendor Advisory
https://jira.xwiki.org/browse/XWIKI-20287Exploit, Issue Tracking, Patch, Vendor Advisory

Timeline

Published: Apr 19, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-29525?

How severe is CVE-2023-29525?

CVE-2023-29525 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 77.75% probability of exploitation in the next 30 days.

How do I fix CVE-2023-29525?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-29525?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST