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Vulnerability record · CVE-2021-42365 · published 29 November 2021

CVE-2021-42365: Asgaros forum cross-site scripting vulnerability

Asgaros · Asgaros Forum

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.

4.8 CVSS 3.1 Medium EPSS 0.70% · top 48.8% CWE-79 · Cross-site scripting
4.8CVSS 3.1 base score, v2 2.1
0.70%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-42365), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.