EIP-2026-118791

PRE-CVE

Microsoft IIS 5.0 - IDC Extension Cross-Site Scripting

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-118791. PoCs published by Roberto.

AI-analyzed exploit summary This is a writeup describing a cross-site scripting (XSS) vulnerability in Microsoft IIS where long URLs ending in .idc are reflected unsanitized in error pages. The advisory lacks actual exploit code but provides a technical description of the issue.

Description

Microsoft IIS 5.0 - IDC Extension Cross-Site Scripting

Exploits (1)

exploitdb WRITEUP VERIFIED
by Roberto · textremotewindows
https://www.exploit-db.com/exploits/21910

This is a writeup describing a cross-site scripting (XSS) vulnerability in Microsoft IIS where long URLs ending in .idc are reflected unsanitized in error pages. The advisory lacks actual exploit code but provides a technical description of the issue.

Classification
Writeup 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Theoretical
Target: Microsoft Internet Information Server (IIS)
No auth needed
Prerequisites: Access to a vulnerable IIS server · Ability to craft malicious URLs
MITRE ATT&CK
mistral-large-3 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026