CVE-2025-30949 CRITICAL

CVE-2025-30949: WordPress Site Chat on Telegram plugin <= 1.0.4 - PHP Object Injection Vulnerability

Vendor Guru Team
Product Site Chat on Telegram
Weakness CWE-502 · Unsafe deserialization
Published July 16, 2025
Last update April 28, 2026

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Deserialization of Untrusted Data vulnerability in Guru Team Site Chat on Telegram site-chat-on-telegram allows Object Injection.This issue affects Site Chat on Telegram: from n/a through <= 1.0.4.

Explanation of Vulnerability in Simple Terms

02Summary

Site Chat on Telegram versions 1.0.4 and earlier contain a deserialization vulnerability that allows unauthenticated attackers to execute arbitrary code on the server. The vulnerability requires no user interaction and can be exploited over the network. An attacker can gain complete control of the affected system, including reading sensitive data, modifying content, and disrupting service.

What an attacker can do

03Attacker Capabilities

Run their own code on the server and take full control of the site without needing to log in.

Potential impact on your site

04Site Impact

Complete compromise of the server: attackers can steal data, modify content, install malware, or take the site offline.

Conditions required to exploit

05Prerequisites

Network access to the vulnerable application. No authentication or user interaction required.

Key dates

06Disclosure timeline

July 16, 2025 CVE published
April 28, 2026 Record updated