CVE-2026-3368 json
Injection Guard <= 1.2.9 - Unauthenticated Stored Cross-Site Scripting via Query Parameter Name
published 2026-03-20 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-13918
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 27%
- public exploits
- 0
- none known
Summary
The Injection Guard plugin for WordPress is vulnerable to Stored Cross-Site Scripting via malicious query parameter names in all versions up to and including 1.2.9. This is due to insufficient input sanitization in the sanitize_ig_data() function which only sanitizes array values but not array keys, combined with missing output escaping in the ig_settings.php template where stored parameter keys are echoed directly into HTML. When a request is made to the site, the plugin captures the query string via $_SERVER['QUERY_STRING'], applies esc_url_raw() (which preserves URL-encoded special characters like %22, %3E, %3C), then passes it to parse_str() which URL-decodes the string, resulting in decoded HTML/JavaScript in the array keys. These keys are stored via update_option('ig_requests_log') and later rendered without esc_html() or esc_attr() on the admin log page. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in the admin log page that execute whenever an administrator views the Injection Guard log interface.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
Affected products
- fahadmahmood Injection Guard
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/15d9817c-910d-4ce1-a5fb-67a2b6580e16?source=cve
- plugins.trac.wordpress.org /browser/injection-guard/trunk/guard.php#L94
- plugins.trac.wordpress.org /browser/injection-guard/trunk/ig_settings.php#L120
- plugins.trac.wordpress.org /browser/injection-guard/trunk/ig_settings.php#L121
- plugins.trac.wordpress.org /browser/injection-guard/tags/1.2.8/ig_settings.php#L121
- plugins.trac.wordpress.org /browser/injection-guard/tags/1.2.8/ig_settings.php#L120
- plugins.trac.wordpress.org /browser/injection-guard/trunk/ig_settings.php#L124
- plugins.trac.wordpress.org /browser/injection-guard/tags/1.2.8/ig_settings.php#L124
- plugins.trac.wordpress.org /browser/injection-guard/tags/1.2.8/guard.php#L94
- plugins.trac.wordpress.org /browser/injection-guard/trunk/guard.php#L105
- plugins.trac.wordpress.org /browser/injection-guard/tags/1.2.8/guard.php#L105
- plugins.trac.wordpress.org /browser/injection-guard/trunk/guard.php#L8
- plugins.trac.wordpress.org /browser/injection-guard/tags/1.2.8/guard.php#L8
- plugins.trac.wordpress.org /browser/injection-guard/trunk/guard.php#L153
- plugins.trac.wordpress.org /browser/injection-guard/tags/1.2.8/guard.php#L153
- plugins.trac.wordpress.org /browser/injection-guard/trunk/guard.php#L49
- plugins.trac.wordpress.org /browser/injection-guard/tags/1.2.8/guard.php#L49
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&old=3482741%40injection-guard&new=3482741%40injection-guard&sfp_ema
Sources
- CVE List CVE-2026-3368
- NVD CVE-2026-3368
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.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.