TelSender <= 1.14.14 - Unauthenticated Stored Cross-Site Scripting via Telegram Chat Title
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Pechenki | TelSender – Сontact form 7, Events, Wpforms, ninja forms and woocommerce to telegram bot | up to 1.14.14 | — | No fix listed | CNA |
- TelSender – Сontact form 7, Events, Wpforms, ninja forms and woocommerce to telegram bot VendorPechenki Affected up to 1.14.14 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-15298
- 2026-10-03 Alias added: GHSA-fxxv-579v-962v
References
Other 8
- https://www.wordfence.com/threat-intel/vulnerabilities/id/cb02878a-2c85-4dcb-bdc0-e65addf9fb9c?source=cve
- https://plugins.trac.wordpress.org/browser/telsender/trunk/js/ajax.js#L139
- https://plugins.trac.wordpress.org/browser/telsender/tags/1.14.14/js/ajax.js#L139
- https://plugins.trac.wordpress.org/browser/telsender/trunk/js/ajax.js#L119
- https://plugins.trac.wordpress.org/browser/telsender/tags/1.14.14/js/ajax.js#L119
- https://plugins.trac.wordpress.org/browser/telsender/trunk/template/view.php#L111
- https://plugins.trac.wordpress.org/browser/telsender/tags/1.14.14/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=
More Pechenki vulnerabilities
- TI-2023-22107 WordPress TelSender plugin <= 1.14.11 - Broken Access Control + CSRF vulnerability CVSS 3.1MEDIUM 5.4
Sources
- CVE-2026-15298 · CVE Program
- CVE-2026-15298 · NVD
- FIRST EPSS
- GHSA-fxxv-579v-962v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences