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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
marketingfire:discussion board – wordpress forum plugin
References 5
https://plugins.trac.wordpress.org/browser/wp-discussion-board/tags/2.6.0/inclu…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/wp-discussion-board/tags/2.6.0/inclu…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/wp-discussion-board/tags/2.6.0/inclu…
security@wordfence.com
https://plugins.trac.wordpress.org/changeset/3761217/wp-discussion-board/trunk/…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/5dbb177e-3cf8-48fe-96…
security@wordfence.com