CVE-2013-4211

CRITICAL

OpenX Ad Server 2.8.10 - Remote Code Execution via Backdoor in flowplayer-3.1.1.min.js

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2013-4211. PoCs published by Metasploit, egypt, Unknown, including Metasploit module exploits/multi/http/openx_backdoor_php.

AI-analyzed exploit summary This Metasploit module exploits a backdoor in OpenX Ad Server 2.8.10, allowing arbitrary PHP code execution via a POST request with a rot13'd and reversed payload. The vulnerability was introduced in the software between November 2012 and August 2013.

Description

A Code Execution Vulnerability exists in OpenX Ad Server 2.8.10 due to a backdoor in flowplayer-3.1.1.min.js library, which could let a remote malicious user execute arbitrary PHP code

Exploits (2)

exploitdb WORKING POC VERIFIED
by Metasploit · rubyremotephp
https://www.exploit-db.com/exploits/27529

This Metasploit module exploits a backdoor in OpenX Ad Server 2.8.10, allowing arbitrary PHP code execution via a POST request with a rot13'd and reversed payload. The vulnerability was introduced in the software between November 2012 and August 2013.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: OpenX Ad Server 2.8.10
No auth needed
Prerequisites: Network access to the target OpenX server
devstral-2 · analyzed Feb 16, 2026 Full analysis →
metasploit WORKING POC EXCELLENT
by egypt, Unknown · rubypocphp
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/openx_backdoor_php.rb

This Metasploit module exploits a backdoor in OpenX Ad Server 2.8.10, allowing arbitrary PHP code execution via a single POST request with a ROT13-encoded and reversed payload. The vulnerability was introduced in versions distributed between November 2012 and August 2013.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: OpenX Ad Server 2.8.10
No auth needed
Prerequisites: Network access to the target OpenX instance · Vulnerable version of OpenX Ad Server (2.8.10)
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (5)

Core 5
Core References
Third Party Advisory, VDB Entry x_refsource_misc
http://www.securityfocus.com/bid/61650
Exploit, Third Party Advisory, VDB Entry x_refsource_misc
http://www.exploit-db.com/exploits/27529
Mailing List, Third Party Advisory x_refsource_misc
http://www.openwall.com/lists/oss-security/2013/08/07/2
Third Party Advisory, VDB Entry x_refsource_misc
https://exchange.xforce.ibmcloud.com/vulnerabilities/86259
Exploit, Third Party Advisory, VDB Entry x_refsource_misc
https://packetstormsecurity.com/files/cve/CVE-2013-4211

Scores

CVSS v3 9.8
EPSS 0.8819
EPSS Percentile 99.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-94
Status published
Products (1)
openx/openx 2.8.10
Published Feb 14, 2020
Tracked Since Feb 18, 2026