What’s Vulnerable › Vulnerabilities

CVE-2026-15298: TelSender <= 1.14.14 - Unauthenticated Stored Cross-Site Scripting via Telegram Chat Title

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-10 · updated 2026-07-10
• Weakness: CWE-79

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.

Affected products

• pechenki TelSender – Сontact form 7, Events, Wpforms, ninja forms and woocommerce to telegram bot: through 1.14.14

References

• https://plugins.trac.wordpress.org/browser/telsender/tags/1.14.14/js/ajax.js#L119
• https://plugins.trac.wordpress.org/browser/telsender/tags/1.14.14/js/ajax.js#L139
• https://plugins.trac.wordpress.org/browser/telsender/tags/1.14.14/template/view.php#L111
• https://plugins.trac.wordpress.org/browser/telsender/trunk/js/ajax.js#L119
• https://plugins.trac.wordpress.org/browser/telsender/trunk/js/ajax.js#L139
• https://plugins.trac.wordpress.org/browser/telsender/trunk/template/view.php#L111
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3449367%40telsender&new=3449367%40telsender&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/cb02878a-2c85-4dcb-bdc0-e65addf9fb9c?source=cve

Get alerted when CVE-2026-15298 or the next vulnerability affects your stack