CVE-2018-19135

HIGH

Clippercms - Cross-Site Request Forgery

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-19135. PoCs published by Ameer Pornillos.

AI-analyzed exploit summary This PoC demonstrates a CSRF vulnerability in ClipperCMS 1.3.3, allowing an attacker to upload arbitrary files (e.g., a malicious HTML file) via a crafted POST request to the KCFinder file upload endpoint. The exploit leverages the lack of CSRF protection to perform actions on behalf of an authenticated user.

Description

ClipperCMS 1.3.3 does not have CSRF protection on its kcfinder file upload (enabled by default). This can be used by an attacker to perform actions for an admin (or any user with the file upload capability). With this vulnerability, one can automatically upload files (by default, it allows html, pdf, xml, zip, and many other file types). A file can be accessed publicly under the "/assets/files" directory.

Exploits (1)

exploitdb WORKING POC
by Ameer Pornillos · textwebappsphp
https://www.exploit-db.com/exploits/45839

This PoC demonstrates a CSRF vulnerability in ClipperCMS 1.3.3, allowing an attacker to upload arbitrary files (e.g., a malicious HTML file) via a crafted POST request to the KCFinder file upload endpoint. The exploit leverages the lack of CSRF protection to perform actions on behalf of an authenticated user.

Classification
Working Poc 100%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: ClipperCMS 1.3.3
Auth required
Prerequisites: Authenticated session of a user with file upload capabilities · Victim must visit a malicious webpage while logged into ClipperCMS
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/ClipperCMS/ClipperCMS/issues/494
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/45839/

Scores

CVSS v3 8.8
EPSS 0.0296
EPSS Percentile 85.5%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-352
Status published
Products (1)
clippercms/clippercms 1.3.3
Published Nov 11, 2018
Tracked Since Feb 18, 2026