CVE-2026-3362

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 Last update: 2026-04-22 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2026-3362 is rated Low Risk (19.3/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.02%). Mandatory action: Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-3362

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-22 0.02%

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-3362

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.4 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
1.3 2.7 [email protected]

Weakness enumeration for CVE-2026-3362

GitHub Security Advisory for CVE-2026-3362

GHSA-39pg-69jq-6vx9 · Severity: medium — The Short Comment Filter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via...

Affected software / configurations for CVE-2026-3362

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2026-3362

URL Tags
https://plugins.trac.wordpress.org/browser/short-comment-filter/tags/2.2/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#L54
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/tags/2.2/views/settings.php#L25
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/trunk/classes/short-comment-filter-settings.php#L54
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/trunk/views/settings.php#L25
https://www.wordfence.com/threat-intel/vulnerabilities/id/4ba46475-bf54-49a8-9b0e-fae3fb4e1df9?source=cve
cvelogic Threat Intelligence