CSRF in Rdbeach Blogchat Chat System
CVE-2026-8420
The BLOGCHAT Chat System plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.3.6.3. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthe…
Vulnerability class: CSRF (Cross-Site Request Forgery)
EPSS: 0.000 (5.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Rdbeach Blogchat Chat System — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-8420?
- CVE-2026-8420 is a medium-severity vulnerability in Rdbeach Blogchat Chat System, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.1/10. Published 2026-05-20.
- How severe is CVE-2026-8420?
- Medium severity. CVSS v3 base score is 6.1 out of 10.