Telegram Bot & Channel <= 4.1 - Unauthenticated Stored Cross-Site Scripting via Telegram Username
Affected versions: *-4.1
Vulnerability type: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected software, patched versions and attribution
The Telegram Bot & Channel plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Telegram username in all versions up to, and including, 4.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Telegram Bot & Channel
Affected versions: *-4.1
Patched versions: 4.1.1
Researcher credit: venom5iix
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- Published
- November 24, 2025
- CVSS
- 7.2