What’s Vulnerable › Vulnerabilities

CVE-2026-9148: Comments <= 7.6.56 - Unauthenticated Stored Cross-Site Scripting via 'Website' Field

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-03 · updated 2026-07-06
• Weakness: CWE-79

Description

The Comments – wpDiscuz plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the guest commenter 'Website' field in versions up to, and including, 7.6.56 This is due to insufficient output escaping in the getCommentAuthor() function, which interpolates the stored comment_author_url value directly into single-quoted HTML attributes without applying esc_url() or esc_attr(). This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• gVectors wpDiscuz: through 7.6.56

References

• https://plugins.trac.wordpress.org/browser/wpdiscuz/tags/7.6.48/forms/wpdFormAttr/Field/DefaultField/Website.php#L119
• https://plugins.trac.wordpress.org/browser/wpdiscuz/tags/7.6.48/forms/wpdFormAttr/Tools/Sanitizer.php#L14
• https://plugins.trac.wordpress.org/browser/wpdiscuz/tags/7.6.48/utils/class.WpdiscuzHelper.php#L1615
• https://plugins.trac.wordpress.org/browser/wpdiscuz/tags/7.6.48/utils/class.WpdiscuzHelper.php#L1619
• https://plugins.trac.wordpress.org/browser/wpdiscuz/tags/7.6.54/forms/wpdFormAttr/Field/DefaultField/Website.php#L119
• https://plugins.trac.wordpress.org/browser/wpdiscuz/tags/7.6.54/forms/wpdFormAttr/Tools/Sanitizer.php#L14
• https://plugins.trac.wordpress.org/browser/wpdiscuz/tags/7.6.54/utils/class.WpdiscuzHelper.php#L1615
• https://plugins.trac.wordpress.org/browser/wpdiscuz/tags/7.6.54/utils/class.WpdiscuzHelper.php#L1619
• https://plugins.trac.wordpress.org/changeset/3563675/wpdiscuz/trunk/utils/class.WpdiscuzHelper.php
• https://plugins.trac.wordpress.org/changeset?old_path=%2Fwpdiscuz/tags/7.6.56&new_path=%2Fwpdiscuz/tags/7.6.57
• https://www.wordfence.com/threat-intel/vulnerabilities/id/f509f1c6-6094-434d-8e70-ad8419250aa2?source=cve

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