CVE-2009-2852

WP-Syntax < 0.9.1 - Remote Code Execution via test_filter[wp_head] Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2009-2852. PoCs published by Raz0r.

AI-analyzed exploit summary This exploit leverages a vulnerability in WP-Syntax plugin (<= 0.9.1) where uninitialized global variables and improper input handling allow remote command execution via function chaining in the `apply_filters` mechanism. The attack abuses `session_id` and `system` functions to execute arbitrary commands.

Description

WP-Syntax plugin 0.9.1 and earlier for Wordpress, with register_globals enabled, allows remote attackers to execute arbitrary PHP code via the test_filter[wp_head] array parameter to test/index.php, which is used in a call to the call_user_func_array function.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Raz0r · textwebappsphp
https://www.exploit-db.com/exploits/9431

This exploit leverages a vulnerability in WP-Syntax plugin (<= 0.9.1) where uninitialized global variables and improper input handling allow remote command execution via function chaining in the `apply_filters` mechanism. The attack abuses `session_id` and `system` functions to execute arbitrary commands.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: WordPress Plugin WP-Syntax <= 0.9.1
No auth needed
Prerequisites: register_globals enabled · WP-Syntax plugin <= 0.9.1 installed · Access to /wp-content/plugins/wp-syntax/test/index.php
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit, Third Party Advisory exploit x_refsource_exploit-db
http://www.exploit-db.com/exploits/9431
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/52457
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2009/2456
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/36040

Scores

EPSS 0.0481
EPSS Percentile 90.8%

Details

CWE
CWE-20
Status published
Products (1)
ryan.mcgeary/wp-syntax < 0.9.1
Published Aug 18, 2009
Tracked Since Feb 18, 2026