CVE-2026-3362
Short Comment Filter <= 2.2 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'Minimum Count' Setting
- State
- Published
- Severity
- 4.4 Medium
- Published
- Apr 22, 2026
- Updated
- Apr 22, 2026
- Reserved
- Feb 27, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.4 Medium | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N | Wordfence |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
Short Comment Filteritsananderson |
|
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/4ba46475-bf54-49a8-9b0e-fae3fb4e1df9?source=cve
- https://plugins.trac.wordpress.org/browser/short-comment-filter/trunk/views/settings.php#L25
- https://plugins.trac.wordpress.org/browser/short-comment-filter/tags/2.2/views/settings.php#L25
- https://plugins.trac.wordpress.org/browser/short-comment-filter/trunk/classes/short-comment-filter-settings.php#L61
- https://plugins.trac.wordpress.org/browser/short-comment-filter/tags/2.2/classes/short-comment-filter-settings.php#L61
- https://plugins.trac.wordpress.org/browser/short-comment-filter/trunk/classes/short-comment-filter-settings.php#L54
- https://plugins.trac.wordpress.org/browser/short-comment-filter/tags/2.2/classes/short-comment-filter-settings.php#L54
- https://plugins.trac.wordpress.org/browser/short-comment-filter/trunk/classes/short-comment-filter-settings.php#L21
- https://plugins.trac.wordpress.org/browser/short-comment-filter/tags/2.2/classes/short-comment-filter-settings.php#L21
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