EIP-2026-101717

PRE-CVE

Episerver 7 patch 4 - XML External Entity Injection

Title source: legacy

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-101717. PoCs published by Jonas Lejon.

AI-analyzed exploit summary This is a functional blind XXE (XML External Entity) exploit for Episerver 7 patch 4 and below. It sets up a malicious DTD server to exfiltrate file contents via out-of-band HTTP requests.

Description

Episerver 7 patch 4 - XML External Entity Injection

Exploits (1)

exploitdb WORKING POC

by Jonas Lejon · pythonwebappshardware

https://www.exploit-db.com/exploits/45286

View Code ZIP pw:eip

This is a functional blind XXE (XML External Entity) exploit for Episerver 7 patch 4 and below. It sets up a malicious DTD server to exfiltrate file contents via out-of-band HTTP requests.

Classification

Working Poc 95%

Attack Type

Info Leak

Complexity

Moderate

Reliability

Reliable

Target: Episerver 7 patch 4 and below

No auth needed

Prerequisites: Publicly accessible IP and port for callback · Network access to target

MITRE ATT&CK

T1190 - Exploit Public-Facing Application T1213 - Data from Information Repositories

devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve

Tracked Since Feb 18, 2026