CVE-2026-107765
Received Received - Intake

Stored XSS in Discussion Board WordPress Forum Plugin

Vulnerability report for CVE-2026-107765, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-10-31

Last updated on: 2026-10-31

Assigner: Wordfence

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.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-10-31
Last Modified
2026-10-31
Generated
2026-10-31
AI Q&A
2026-10-31
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

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Executive Summary

This is a Stored Cross-Site Scripting (XSS) vulnerability in the Discussion Board – WordPress Forum Plugin affecting versions up to 2.6.0. It occurs due to insufficient output escaping in the user profile Website field. Attackers with subscriber-level access or higher can inject malicious scripts via the user_url parameter, which executes when other users view pages containing the attacker's reply.

Detection Guidance

Check WordPress plugin versions for Discussion Board – WordPress Forum Plugin up to 2.6.0. Inspect user profiles for malicious scripts in the Website (user_url) field. Review comments for stored XSS payloads in Discussion Board topics.

Impact Analysis

An attacker could steal user sessions, redirect users to malicious sites, or perform actions on their behalf. Users with access to sensitive data or administrative functions are at higher risk. The impact depends on user privileges and the plugin's usage context.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR's integrity and confidentiality principles. For HIPAA, it may risk protected health information exposure. Compliance violations could result in fines or legal consequences depending on data processed.

Mitigation Strategies

Update the Discussion Board – WordPress Forum Plugin to the latest version. Remove suspicious scripts from user profiles and comments. Implement input validation for user_url fields. Monitor for unauthorized script execution in pages.

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