Vulnerabilities / Iptanus File Upload / WPSEC-2026-3094
Iptanus File Upload <= 5.2.3 - Unauthenticated Stored Cross-Site Scripting via File Upload HTML Content Detection Bypass
High 7.2
CWE-79Fixed in 5.2.4
- ID
- WPSEC-2026-3094
- Plugin
- Iptanus File Upload (wp-file-upload)
- Affected
- all versions before 5.2.4
- Remediation
- Update to 5.2.4 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin Low · Affected versions Low among sites WPSec scans, 2026-11-13
- Attack surface
- Iptanus File Upload on WPSec AttackSurface
- Fix released
- Published
Description
The Iptanus File Upload plugin for WordPress is vulnerable to Stored Cross-Site Scripting via uploaded files in all versions up to, and including, 5.2.3 due to an insufficient HTML-content upload check. A file that begins with a vertical-tab character or with an incomplete HTML tag name (for example <bx>) bypasses the check, yet browsers still sniff and render it as HTML. This makes it possible for unauthenticated attackers, when an upload form is available to visitors, to upload files containing arbitrary web scripts that execute whenever a user accesses the uploaded file.
References
- https://wpsec.com/vuln/WPSEC-2026-3094/
- https://plugins.svn.wordpress.org/wp-file-upload/tags/5.2.4/
- https://wordpress.org/plugins/wp-file-upload/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
This advisory as JSON or Markdown · All advisories: JSON, RSS