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CVE-2026-107765

MEDIUM 6.4 CVSS 3.1
Published
October 31, 2026
Last modified
November 2, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Description

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.

Affected WordPress components

  • Discussion Board – WordPress Forum Plugin Plugin · wp-discussion-board
    Confirmed match Active
    Up to and including 2.6.0
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • marketingfire Discussion Board – WordPress Forum Plugin — Up to and including 2.6.0

References

  • 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/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/changeset/3761217/wp-discussion-board/trunk/includes/functions/functions-user.php
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/5dbb177e-3cf8-48fe-9660-999c177cbeb5?source=cve
  • nvd.nist.gov Official NVD record