CVE-2019-13358

HIGH

OpenCats < 0.9.4-3 - XML External Entity Injection via DOCX/ODT File Upload

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-13358. PoCs published by Jake Ruston.

AI-analyzed exploit summary This exploit leverages an XXE vulnerability in OpenCATS to read arbitrary files from the server by embedding a malicious XML entity in a crafted DOCX file. The exploit automates the process of creating, uploading, and retrieving the file contents via base64 encoding.

Description

lib/DocumentToText.php in OpenCats before 0.9.4-3 has XXE that allows remote users to read files on the underlying operating system. The attacker must upload a file in the docx or odt format.

Exploits (1)

exploitdb WORKING POC
by Jake Ruston · pythonwebappsphp
https://www.exploit-db.com/exploits/50316

This exploit leverages an XXE vulnerability in OpenCATS to read arbitrary files from the server by embedding a malicious XML entity in a crafted DOCX file. The exploit automates the process of creating, uploading, and retrieving the file contents via base64 encoding.

Classification
Working Poc 95%
Attack Type
Info Leak
Complexity
Moderate
Reliability
Reliable
Target: OpenCATS < 0.9.4-3
No auth needed
Prerequisites: Network access to the target OpenCATS instance · Ability to upload files to the application
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Release Notes, Vendor Advisory x_refsource_misc
http://www.opencats.org/news/
Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/opencats/OpenCATS/pull/440
Exploit, Third Party Advisory, VDB Entry x_refsource_misc
http://packetstormsecurity.com/files/164253/OpenCats-0.9.4-2-XML-Injection.html

Scores

CVSS v3 7.5
EPSS 0.2367
EPSS Percentile 97.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-611
Status published
Products (1)
opencats/opencats < 0.9.4-3
Published Jul 05, 2019
Tracked Since Feb 18, 2026