PT-2026-26802 · WordPress · Group Chat & Video Chat By Atomchat+1

Nabil Irawan · Published 2026-03-21 · Updated 2026-03-21 · CVE-2026-1253

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions AtomChat versions up to and including 1.1.7

Description The Group Chat & Video Chat by AtomChat plugin for WordPress has a flaw that allows unauthorized data modification. This is due to a missing capability check in the atomchat update auth ajax and atomchat update layout ajax functions. Attackers with Subscriber-level access or higher can update plugin options, including API keys, authentication keys, and layout configurations.

Recommendations Update the AtomChat plugin to a version newer than 1.1.7.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-1253

Affected Products

Atomchat

Group Chat & Video Chat By Atomchat

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-1253 · Security Note
• https://twitter.com/CVEnew/status/2035237279892218248 · Twitter Post
• https://plugins.trac.wordpress.org/browser/atomchat/trunk/includes/atomchat_requesthandler.php#L175 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/5c2980c3-0038-42ab-8751-72c40921477a?source=cve · Note
• https://plugins.trac.wordpress.org/browser/atomchat/tags/1.1.7/includes/atomchat_requesthandler.php#L175 · Note