CVE-2026-15021

medium

Description

The wpForo Forum plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'location' Profile Field in all versions up to, and including, 3.1.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The sanitize_text_field() function applied at input does not encode double quotes, allowing attribute breakout via a payload that escapes the href attribute context and injects event handler attributes.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/2cd364c5-c053-4c50-8232-bb47ab8e834b?source=cve

https://plugins.trac.wordpress.org/changeset?reponame=&old=3603849%40wpforo&new=3603849%40wpforo

https://plugins.trac.wordpress.org/browser/wpforo/tags/3.1.1/classes/Members.php#L1031

https://plugins.trac.wordpress.org/browser/wpforo/tags/3.1.1/classes/Forms.php#L1074

https://plugins.trac.wordpress.org/browser/wpforo/tags/3.1.1/classes/Forms.php#L1035

https://plugins.trac.wordpress.org/browser/wpforo/tags/3.0.5/classes/Members.php#L1031

https://plugins.trac.wordpress.org/browser/wpforo/tags/3.0.5/classes/Forms.php#L1074

https://plugins.trac.wordpress.org/browser/wpforo/tags/3.0.5/classes/Forms.php#L1035

Details

Source: Mitre, NVD

Published: 2026-07-16

Updated: 2026-07-16

Risk Information

CVSS v2

Base Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.4

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

Severity: Medium

EPSS

EPSS: 0.00206