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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.

PUBLISHED Reserved 2026-05-12 | Published 2026-05-20 | Updated 2026-05-20 | Assigner Wordfence




MEDIUM: 6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Problem types

CWE-352 Cross-Site Request Forgery (CSRF)

Product status

Default status
unaffected

Any version
affected

Timeline

2026-05-19:Disclosed

Credits

Muhammad Nur Ibnu Hubab finder

References

www.wordfence.com/...-19aa-445b-8fdc-b029bdafd58f?source=cve

plugins.trac.wordpress.org/...m/trunk/wp-blogchat-widget.php

plugins.trac.wordpress.org/...1.3.6.3/wp-blogchat-widget.php

plugins.trac.wordpress.org/...m/trunk/wp-blogchat-widget.php

plugins.trac.wordpress.org/...1.3.6.3/wp-blogchat-widget.php

plugins.trac.wordpress.org/...m/trunk/wp-blogchat-widget.php

plugins.trac.wordpress.org/...1.3.6.3/wp-blogchat-widget.php

plugins.trac.wordpress.org/...m/trunk/wp-blogchat-widget.php

plugins.trac.wordpress.org/...1.3.6.3/wp-blogchat-widget.php

cve.org (CVE-2026-8420)

nvd.nist.gov (CVE-2026-8420)

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