CVE-2026-3362 json
Short Comment Filter <= 2.2 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'Minimum Count' Setting
published 2026-04-22 6 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-24642
- cvss
- 4.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 31%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 6 mo ago
Exploit prediction
0.37% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.4 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N |
Affected products
- itsananderson Short Comment Filter
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/4ba46475-bf54-49a8-9b0e-fae3fb4e1df9?source=cve
- plugins.trac.wordpress.org /browser/short-comment-filter/trunk/views/settings.php#L25
- plugins.trac.wordpress.org /browser/short-comment-filter/tags/2.2/views/settings.php#L25
- plugins.trac.wordpress.org /browser/short-comment-filter/trunk/classes/short-comment-filter-settings.php#L61
- plugins.trac.wordpress.org /browser/short-comment-filter/tags/2.2/classes/short-comment-filter-settings.php#L61
- plugins.trac.wordpress.org /browser/short-comment-filter/trunk/classes/short-comment-filter-settings.php#L54
- plugins.trac.wordpress.org /browser/short-comment-filter/tags/2.2/classes/short-comment-filter-settings.php#L54
- plugins.trac.wordpress.org /browser/short-comment-filter/trunk/classes/short-comment-filter-settings.php#L21
- plugins.trac.wordpress.org /browser/short-comment-filter/tags/2.2/classes/short-comment-filter-settings.php#L21
Sources
- CVE List CVE-2026-3362
- NVD CVE-2026-3362
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.