CVE-2026-15298: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in pechenki TelSender – Сontact form 7, Events, Wpforms, ninja forms and woocommerce to telegram bot
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.
AI Analysis
Technical Summary
CVE-2026-15298 describes a DOM-Based Cross-Site Scripting vulnerability in the TelSender plugin for WordPress (versions up to 1.14.14). The issue stems from improper neutralization of input during web page generation, specifically when processing Telegram API responses containing chat titles controlled by an attacker. This allows unauthenticated attackers to inject and execute arbitrary scripts in the context of an administrator's browser when the TelSender settings page is accessed and the "Tested" button is clicked.
Potential Impact
Successful exploitation allows an unauthenticated attacker to execute arbitrary JavaScript in the context of an administrator's browser. This can lead to information disclosure, session hijacking, or other actions permitted by the administrator's privileges. The vulnerability does not impact availability but compromises confidentiality and integrity.
Mitigation Recommendations
No official patch or remediation has been confirmed at this time. Users should monitor the vendor's advisory for updates and apply any official fixes once available. Until then, restrict access to the TelSender settings page to trusted administrators only and avoid clicking the "Tested" button when untrusted Telegram chat titles may be present.
CVE-2026-15298: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in pechenki TelSender – Сontact form 7, Events, Wpforms, ninja forms and woocommerce to telegram bot
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 v3.1
Score 7.2high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-15298 describes a DOM-Based Cross-Site Scripting vulnerability in the TelSender plugin for WordPress (versions up to 1.14.14). The issue stems from improper neutralization of input during web page generation, specifically when processing Telegram API responses containing chat titles controlled by an attacker. This allows unauthenticated attackers to inject and execute arbitrary scripts in the context of an administrator's browser when the TelSender settings page is accessed and the "Tested" button is clicked.
Potential Impact
Successful exploitation allows an unauthenticated attacker to execute arbitrary JavaScript in the context of an administrator's browser. This can lead to information disclosure, session hijacking, or other actions permitted by the administrator's privileges. The vulnerability does not impact availability but compromises confidentiality and integrity.
Mitigation Recommendations
No official patch or remediation has been confirmed at this time. Users should monitor the vendor's advisory for updates and apply any official fixes once available. Until then, restrict access to the TelSender settings page to trusted administrators only and avoid clicking the "Tested" button when untrusted Telegram chat titles may be present.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-07-09T15:53:59.287Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a50809468715ace430636d6
Added to database: 07/10/2026, 05:18:12 UTC
Last enriched: 07/10/2026, 05:32:53 UTC
Last updated: 07/10/2026, 07:55:28 UTC
Views: 5
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