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

7.2
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2026-15298
CVSS 7.2 (High)
Publicly Published January 27, 2026
Last Updated July 10, 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.

Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.

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Vulnerability Details for TelSender – Сontact form 7, Events, Wpforms, ninja forms and woocommerce to telegram bot

Software Type Plugin
Software Slug telsender (view on wordpress.org)
Patched? Yes
Remediation Update to version 1.14.15, or a newer patched version
Affected Version
  • <= 1.14.14
Patched Version
  • 1.14.15

Recent vulnerabilities in TelSender – Сontact form 7, Events, Wpforms, ninja forms and woocommerce to telegram bot

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