CVE-2026-8420

BLOGCHAT Chat System <= 1.3.6.3 - Cross-Site Request Forgery to Stored Cross-Site Scripting via Settings Update

MEDIUM
6.1
CVSS Score
Published: May 20, 2026 at 01:25 AM UTC
Updated: July 23, 2026 at 09:11 PM UTC
1 product affected across 1 vendorBLOGCHAT Chat System

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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 unauthenticated attackers to update settings and inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 1.3.6.3

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.1MEDIUMWordfence
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-352

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