TelSender <= 1.14.14 - Unauthenticated Stored Cross-Site Scripting via Telegram Chat Title

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE Not available
CVSS High (7.2)
Publicly Published January 27, 2026
Last Updated February 3, 2026
Researcher Kai Aizen
Description

The TelSender plugin for WordPress is vulnerable to DOM-Based Cross-Site Scripting in all versions up to, and including, 1.14.14. This is due to insufficient input sanitization when processing Telegram API responses containing attacker-controlled chat titles. This makes it possible for unauthenticated attackers to inject malicious scripts via Telegram chat titles that execute when an administrator opens the TelSender settings page and clicks the "Tested" button.

References

1 affected software package

Software Type Plugin
Software Slug telsender (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 1.14.14
Patched Version
  • 1.14.15
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