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CVE-2026-29971 — An attacker can execute arbitrary JavaScript in the victim's browser, potentially leading to session hijacking or privilege escalation. | Kitploit
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GitHubtharooon/cve-2026-29971

CVE-2026-29971

An attacker can execute arbitrary JavaScript in the victim's browser, potentially leading to session hijacking or privilege escalation.

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CVE-2026-29971

An attacker can execute arbitrary JavaScript in the victim's browser, potentially leading to session hijacking or privilege escalation.

CVE-2026-29971

Vulnerability

Reflected Cross-Site Scripting (XSS)

Affected Product

WebFileSys

Affected Version

2.31.1

Description

A reflected cross-site scripting vulnerability exists in WebFileSys version 2.31.1. User-controlled input is reflected into HTML and JavaScript contexts without proper output encoding, allowing an attacker to execute arbitrary JavaScript in the victim's browser.

Impact

An attacker may exploit this issue by inducing a victim to interact with a crafted request or link. Successful exploitation can lead to:

  • Session hijacking
  • Credential theft
  • Unauthorized actions within the authenticated session

Affected Components

  • ftpBackup functionality
  • authentication input handling
  • search functionality
  • error message rendering

Steps to Reproduce

  1. Navigate to the WebFileSys login page.
  2. Inject the following payload in the affected parameter.

Example payloads which worked: <IMG SRC="javascript:alert('XSS')", %3CScRiPt%3Ealert(1)%3C%2FsCriPt%3E, <%

  1. Submit the request.
  2. The payload is reflected and executed in the browser.

CVE

CVE-2026-29971

Discoverer

Tharun Teja Chidurala

References

https://www.cve.org/CVERecord?id=CVE-2026-29971

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