CVE-2026-1191 json
JavaScript Notifier <= 1.2.8 - Authenticated (Administrator+) Stored Cross-Site Scripting via Plugin Settings
published 2026-01-24 9 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-4553
- cvss
- 4.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 14%
- public exploits
- 0
- none known
Summary
The JavaScript Notifier plugin for WordPress is vulnerable to Stored Cross-Site Scripting via plugin settings in all versions up to, and including, 1.2.8. This is due to insufficient input sanitization and output escaping on user-supplied attributes in the `wp_footer` action. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 9 mo ago
Exploit prediction
0.23% chance of exploitation in the next 30 days, higher than 14% 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
- freemp JavaScript Notifier
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/97696702-4d40-41dd-a25f-f2ee7681a2c9?source=cve
- plugins.trac.wordpress.org /browser/javascript-notifier/trunk/javascript-notifier.php#L75
- plugins.trac.wordpress.org /browser/javascript-notifier/tags/1.2.8/javascript-notifier.php#L75
- plugins.trac.wordpress.org /changeset/3449861/
Sources
- CVE List CVE-2026-1191
- NVD CVE-2026-1191
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.