CVE-2026-15298 json
TelSender <= 1.14.14 - Unauthenticated Stored Cross-Site Scripting via Telegram Chat Title
published 3mo ago modified 3mo ago also EUVD-2026-42805
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 37%
- public exploits
- 0
- none known
Summary
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.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 3mo ago
Exploit prediction
0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
Affected products
- pechenki TelSender – Сontact form 7, Events, Wpforms, ninja forms and woocommerce to telegram bot
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/cb02878a-2c85-4dcb-bdc0-e65addf9fb9c?source=cve
- plugins.trac.wordpress.org /browser/telsender/trunk/js/ajax.js#L139
- plugins.trac.wordpress.org /browser/telsender/tags/1.14.14/js/ajax.js#L139
- plugins.trac.wordpress.org /browser/telsender/trunk/js/ajax.js#L119
- plugins.trac.wordpress.org /browser/telsender/tags/1.14.14/js/ajax.js#L119
- plugins.trac.wordpress.org /browser/telsender/trunk/template/view.php#L111
- plugins.trac.wordpress.org /browser/telsender/tags/1.14.14/template/view.php#L111
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&old=3449367%40telsender&new=3449367%40telsender&sfp_email=&sfph_mai
Sources
- CVE List CVE-2026-15298
- NVD CVE-2026-15298
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.