CVE-2021-42365

Name: CVE-2021-42365
Creator: NVD / NIST
Published: 2021-11-29T19:15:07.82+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.68%

Last modified Jun 17, 2026

CVE-2021-42365 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. The Asgaros Forums WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient escaping via the name parameter found in the ~/admin/tables/admin-structure-table.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 1.15.13. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.. EPSS estimates a 0.68% chance of exploitation in the next 30 days.

Description

The Asgaros Forums WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient escaping via the name parameter found in the ~/admin/tables/admin-structure-table.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 1.15.13. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

0.68%

47.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Asgaros	Asgaros Forum	< 1.15.14

References

https://plugins.trac.wordpress.org/changeset/2635143/asgaros-forum/trunk/admin/tables/admin-structure-table.phpPatch, Third Party Advisory
https://wordfence.com/vulnerability-advisories/#CVE-2021-42365Third Party Advisory
https://plugins.trac.wordpress.org/changeset/2635143/asgaros-forum/trunk/admin/tables/admin-structure-table.phpPatch, Third Party Advisory
https://wordfence.com/vulnerability-advisories/#CVE-2021-42365Third Party Advisory

Timeline

Published: Nov 29, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-42365?

How severe is CVE-2021-42365?

CVE-2021-42365 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.68% probability of exploitation in the next 30 days.

How do I fix CVE-2021-42365?

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-2021-42365?

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

Scan your code now

Source: NVD / NIST