What is CVE-2025-8783?

CVE-2025-8783 is a medium-severity vulnerability in Kleor Contact Manager, classified under Cross-site Scripting. CVSS score: 4.4/10. Published 2025-08-19.

How severe is CVE-2025-8783?

Medium severity. CVSS v3 base score is 4.4 out of 10.

XSS in Kleor Contact Manager

CVE-2025-8783

The Contact Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'title’ parameter in all versions up to, and including, 8.6.5 due to insufficient input sanitization and output escaping. This makes it possible…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (14.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N.

Affected products

Kleor Contact Manager — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.wordfence.com/threat-intel/vulnerabilities/id/7e52a487-8e87-49b7-a044-9fb84…
plugins.trac.wordpress.org/browser/contact-manager/trunk/admin-pages-functions…
plugins.trac.wordpress.org/changeset/3345750/

Frequently asked questions

What is CVE-2025-8783?: CVE-2025-8783 is a medium-severity vulnerability in Kleor Contact Manager, classified under Cross-site Scripting. CVSS score: 4.4/10. Published 2025-08-19.
How severe is CVE-2025-8783?: Medium severity. CVSS v3 base score is 4.4 out of 10.