Description
The Short Comment Filter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Minimum Count' settings field in all versions up to and including 2.2. This is due to insufficient input sanitization (no sanitize callback on register_setting) and missing output escaping (no esc_attr() on the echoed value in the input's value attribute). The option value is stored via update_option() and rendered unescaped in an HTML attribute context. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in the settings page that will execute whenever a user accesses that page. This is particularly impactful in WordPress multisite installations or when DISALLOW_UNFILTERED_HTML is set, where administrators are not granted the unfiltered_html capability.
Published: 2026-04-22
Score: 4.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Stored Cross‑Site Scripting with administrator privileges
Action: Apply patch
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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History

Wed, 22 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 22 Apr 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Itsananderson
Itsananderson short Comment Filter
Wordpress
Wordpress wordpress
Vendors & Products Itsananderson
Itsananderson short Comment Filter
Wordpress
Wordpress wordpress

Wed, 22 Apr 2026 08:30:00 +0000

Type Values Removed Values Added
Description The Short Comment Filter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Minimum Count' settings field in all versions up to and including 2.2. This is due to insufficient input sanitization (no sanitize callback on register_setting) and missing output escaping (no esc_attr() on the echoed value in the input's value attribute). The option value is stored via update_option() and rendered unescaped in an HTML attribute context. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in the settings page that will execute whenever a user accesses that page. This is particularly impactful in WordPress multisite installations or when DISALLOW_UNFILTERED_HTML is set, where administrators are not granted the unfiltered_html capability.
Title Short Comment Filter <= 2.2 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'Minimum Count' Setting
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N'}


Subscriptions

Itsananderson Short Comment Filter
Wordpress Wordpress
cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-04-22T13:48:36.565Z

Reserved: 2026-02-27T19:52:23.019Z

Link: CVE-2026-3362

cve-icon Vulnrichment

Updated: 2026-04-22T13:48:27.651Z

cve-icon NVD

Status : Deferred

Published: 2026-04-22T09:16:21.757

Modified: 2026-04-22T20:22:50.570

Link: CVE-2026-3362

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-22T11:44:12Z

Weaknesses