CVE-2011-4453

PmWiki 2.x < 2.2.35 - Remote Code Execution via PageListSort Order Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 3 public exploits for CVE-2011-4453. PoCs published by Metasploit, EgiX, including Metasploit module exploits/multi/http/pmwiki_pagelist.

AI-analyzed exploit summary This Metasploit module exploits a PHP code injection vulnerability in PmWiki versions 2.0.0 to 2.2.34 via the pagelist function. It injects a base64-encoded payload through a crafted HTTP header and executes arbitrary PHP code.

Description

The PageListSort function in scripts/pagelist.php in PmWiki 2.x before 2.2.35 allows remote attackers to execute arbitrary code via PHP sequences in a crafted order parameter in a pagelist directive, leading to unintended use of the PHP create_function function.

Exploits (3)

exploitdb WORKING POC VERIFIED
by Metasploit · rubywebappsphp
https://www.exploit-db.com/exploits/18243

This Metasploit module exploits a PHP code injection vulnerability in PmWiki versions 2.0.0 to 2.2.34 via the pagelist function. It injects a base64-encoded payload through a crafted HTTP header and executes arbitrary PHP code.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: PmWiki <= 2.2.34
No auth needed
Prerequisites: Network access to the target PmWiki installation
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by EgiX · phpwebappsphp
https://www.exploit-db.com/exploits/18149

This exploit leverages a PHP code injection vulnerability in PmWiki's pagelist directive (CVE-2011-4453) by injecting arbitrary code via the 'order' parameter, which is then executed via create_function(). It establishes a pseudo-shell for remote command execution.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: PmWiki <= 2.2.34
Auth required
Prerequisites: Target PmWiki instance with vulnerable version · Ability to send HTTP POST requests to the target · Possible authentication if the wiki is not publicly writable
devstral-2 · analyzed Feb 16, 2026 Full analysis →
metasploit WORKING POC EXCELLENT
by EgiX · rubypoc
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/pmwiki_pagelist.rb

This Metasploit module exploits a PHP code injection vulnerability in PmWiki's pagelist.php (CVE-2011-4453) by injecting a base64-encoded payload via HTTP headers and triggering execution through a crafted pagelist directive.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: PmWiki 2.0.0 to 2.2.34
No auth needed
Prerequisites: Network access to the target PmWiki installation
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit exploit x_refsource_exploit-db
http://www.exploit-db.com/exploits/18243/
Exploit exploit x_refsource_exploit-db
http://www.exploit-db.com/exploits/18149/
Exploit, Patch x_refsource_confirm
http://www.pmwiki.org/wiki/PITS/01271

Scores

EPSS 0.5341
EPSS Percentile 98.9%

Details

CWE
CWE-94
Status published
Products (43)
pmwiki/pmwiki 2.0.0
pmwiki/pmwiki 2.0.1
pmwiki/pmwiki 2.0.2
pmwiki/pmwiki 2.0.3
pmwiki/pmwiki 2.0.4
pmwiki/pmwiki 2.0.5
pmwiki/pmwiki 2.0.6
pmwiki/pmwiki 2.0.7
pmwiki/pmwiki 2.0.8
pmwiki/pmwiki 2.0.9
... and 33 more
Published Dec 22, 2011
Tracked Since Feb 18, 2026