Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/telsender/tags/1.14.14/js/ajax.js#L11
- https://plugins.trac.wordpress.org/browser/telsender/tags/1.14.14/js/ajax.js#L13
- https://plugins.trac.wordpress.org/browser/telsender/tags/1.14.14/template/view.
- 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#L11
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old
- https://www.wordfence.com/threat-intel/vulnerabilities/id/cb02878a-2c85-4dcb-bdc
FAQ
What is CVE-2026-15298?
CVE-2026-15298 is a vulnerability with a CVSS score of 7.2 (HIGH). 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 Telegra...
How severe is CVE-2026-15298?
CVE-2026-15298 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-15298?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.