PT-2026-26647 · Unknown · File Thingie

Leefish + 1 · Published 2026-03-20 · Updated 2026-03-22 · CVE-2026-30579

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

Name of the Vulnerable Software and Affected Versions File Thingie version 2.5.7

Description File Thingie version 2.5.7 is susceptible to Cross Site Scripting (XSS). A malicious user can exploit the "upload file" functionality by uploading a file with a specially crafted file name to trigger a Javascript payload. The vulnerable functionality involves the processing of uploaded files and their associated names. The filename is not properly sanitized before being used in a web page, allowing for the injection of malicious scripts.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, restrict the types of files that can be uploaded. Sanitize the filename before using it in a web page.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-30579

Affected Products

File Thingie

References · 4

• 🔥 https://github.com/SpeWnz/Vulnerability-Research/tree/main/CVE-2026-30579 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-30579 · Security Note
• https://github.com/leefish/filethingie · Note
• https://twitter.com/CVEnew/status/2035627034638942282 · Twitter Post