CVE-2026-15298
The TelSender plugin for WordPress is vulnerable to DOM-Based Cross-Site Scripting in all versions up to, and including, 1.14.14.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.43%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- EPSS
- 0.43% probability · 36th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Source
- security@wordfence.com
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.