What is CVE-2021-39344?

CVE-2021-39344 is a medium-severity vulnerability in Kajoom Kjm Admin Notices, classified under Cross-site Scripting. CVSS score: 5.5/10. Published 2021-10-15.

How severe is CVE-2021-39344?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2021-39344 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Kajoom Kjm Admin Notices

CVE-2021-39344

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.011 (62.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N.

Affected products

Kajoom Kjm_admin_notices
Kjm Admin Notices — versions 2.0.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

security@wordfence.com (Third Party Advisory, x_refsource_MISC)
security@wordfence.com (Exploit, Third Party Advisory, x_refsource_MISC)
security@wordfence.com (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-39344?: CVE-2021-39344 is a medium-severity vulnerability in Kajoom Kjm Admin Notices, classified under Cross-site Scripting. CVSS score: 5.5/10. Published 2021-10-15.
How severe is CVE-2021-39344?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2021-39344 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.