Description
The KJM Admin Notices WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via several parameters found in the ~/admin/class-kjm-admin-notices-admin.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 2.0.1. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.
References (3)
Core 3
Core References
Third Party Advisory x_refsource_misc
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39344
Exploit, Third Party Advisory x_refsource_misc
https://github.com/BigTiger2020/word-press/blob/main/KJM%20Admin%20Notices.md
Patch, Third Party Advisory x_refsource_misc
https://plugins.trac.wordpress.org/browser/kjm-admin-notices/trunk/admin/class-kjm-admin-notices-admin.php
Scores
CVSS v3
5.5
EPSS
0.0083
EPSS Percentile
74.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (1)
kajoom/kjm_admin_notices
< 2.0.1
Published
Oct 15, 2021
Tracked Since
Feb 18, 2026