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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-107765
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-31 07:16:34 UTC
Updated2026-10-31 07:16:34 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 6.4 MEDIUM from [email protected]

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

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
3.1CNADECLARED6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Marketingfire Discussion Board WordPress Forum Plugin affected 2.6.0 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/wp-discussion-board/tags/2.6.0/includes/functions/fun... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/5dbb177e-3cf8-48fe-9660-999c1... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/wp-discussion-board/tags/2.6.0/includes/functions/fun... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-discussion-board/tags/2.6.0/includes/functions/fun... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3761217/wp-discussion-board/trunk/includes/function... [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Adrien Brunner (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-10-08T19:25:50.000ZVendor Notified
CNA2026-10-30T18:35:57.000ZDisclosed

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