🔐 CVE Alert

CVE-2026-107765

MEDIUM 6.4

Discussion Board <= 2.6.0 - Authenticated (Subscriber+) Stored Cross-Site Scripting via User Profile Website (user_url) Field

CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th

The Discussion Board – WordPress Forum Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.6.0 via the user profile Website (user_url) field. This is due to insufficient output escaping in the ctdb_filter_comment_author_name() callback hooked to get_comment_author_link, which interpolates the raw user_url value into a single-quoted href attribute without esc_url() or esc_attr(). 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 a Discussion Board topic containing the attacker's reply.

CWE CWE-79
Vendor marketingfire
Product discussion board – wordpress forum plugin
Published Oct 31, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

marketingfire / Discussion Board – WordPress Forum Plugin
0 ≤ 2.6.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/5dbb177e-3cf8-48fe-9660-999c177cbeb5?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wp-discussion-board/tags/2.6.0/includes/functions/functions-user.php#L83 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wp-discussion-board/tags/2.6.0/includes/functions/functions-user.php#L92 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wp-discussion-board/tags/2.6.0/includes/functions/functions-skins.php#L43 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3761217/wp-discussion-board/trunk/includes/functions/functions-user.php

Credits

Adrien Brunner