CVE-2020-15252

Name: CVE-2020-15252
Creator: NVD / NIST
Published: 2020-10-16T17:15:11.963+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 3.22%

Last modified Jun 17, 2026

CVE-2020-15252 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. In XWiki before version 12.5 and 11.10.6, any user with SCRIPT right (EDIT right before XWiki 7.4) can gain access to the application server Servlet context which contains tools allowing to instantiate arbitrary Java objects and invoke methods that may lead to arbitrary code execution. This is patched in XWiki 12.5 and XWiki 11.10.6.. EPSS estimates a 3.22% chance of exploitation in the next 30 days.

Description

In XWiki before version 12.5 and 11.10.6, any user with SCRIPT right (EDIT right before XWiki 7.4) can gain access to the application server Servlet context which contains tools allowing to instantiate arbitrary Java objects and invoke methods that may lead to arbitrary code execution. This is patched in XWiki 12.5 and XWiki 11.10.6.

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

3.22%

86.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Xwiki	Xwiki	< 11.10.6
Xwiki	Xwiki	>= 12.0, < 12.5

References

https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-5hv6-mh8q-q9v8Third Party Advisory
https://jira.xwiki.org/browse/XWIKI-17141Exploit, Vendor Advisory
https://jira.xwiki.org/browse/XWIKI-17423Vendor Advisory
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-5hv6-mh8q-q9v8Third Party Advisory
https://jira.xwiki.org/browse/XWIKI-17141Exploit, Vendor Advisory
https://jira.xwiki.org/browse/XWIKI-17423Vendor Advisory

Timeline

Published: Oct 16, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-15252?

How severe is CVE-2020-15252?

CVE-2020-15252 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 3.22% probability of exploitation in the next 30 days.

How do I fix CVE-2020-15252?

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-2020-15252?

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

Scan your code now

Source: NVD / NIST