Vulnerability · Published Oct 15, 2021 · Assigned by Wordfence

CVE-2021-39344KJM Admin Notices <= 2.0.1 Authenticated Stored Cross-Site Scripting

Medium 5.5

In plain English

A medium-severity cross-site scripting in KJM Admin Notices from KJM Admin Notices. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 65% of all known vulnerabilities).

Severity (CVSS 3.1)5.5Medium

Exploit odds (30 days)1.1%top 34.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
KJM Admin Notices	KJM Admin Notices	2.0.1 – through 2.0.1

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

References

https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39344 x_refsource_MISC
https://github.com/BigTiger2020/word-press/blob/main/KJM%20Admin%20Notices.md x_refsource_MISC
https://plugins.trac.wordpress.org/browser/kjm-admin-notices/trunk/admin/class-kjm-admin-notices-admin.php x_refsource_MISC