WordPress 2.1.1 theme.php input validation

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in WordPress 2.1.1. Affected by this vulnerability is an unknown functionality of the file theme.php. The manipulation results in input validation. This vulnerability is known as CVE-2007-1277. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in WordPress 2.1.1 (Content Management System). Affected is some unknown functionality of the file theme.php. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

WordPress 2.1.1, as downloaded from some official distribution sites during February and March 2007, contains an externally introduced backdoor that allows remote attackers to execute arbitrary commands via (1) an eval injection vulnerability in the ix parameter to wp-includes/feed.php, and (2) an untrusted passthru call in the iz parameter to wp-includes/theme.php.

The bug was discovered 03/02/2007. The weakness was published 03/05/2007 by Ivan Fratric (Website). The advisory is available at ifsec.blogspot.com. This vulnerability is traded as CVE-2007-1277 since 03/05/2007. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

After even before and not, there has been an exploit disclosed. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. By approaching the search of inurl:theme.php it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 24759 (WordPress < 2.1.1 Multiple Script Backdoors), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at wordpress.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published even before and not after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 10196. In this case the pattern wp-includes/feed.php is used for detection.

The vulnerability is also documented in the databases at X-Force (32807), Tenable (24759), SecurityFocus (BID 22797†), OSVDB (33909†) and Secunia (SA24374†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 4.9

VulDB Base Score: 5.6
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 24759
Nessus Name: WordPress < 2.1.1 Multiple Script Backdoors
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: wordpress.org

Snort ID: 10196
Snort Message: BACKDOOR Wordpress backdoor feed.php code execution attempt
Snort Pattern: 🔍
PaloAlto IPS: 🔍

Timelineinfo

03/02/2007 🔍
03/02/2007 +0 days 🔍
03/02/2007 +0 days 🔍
03/02/2007 +0 days 🔍
03/02/2007 +0 days 🔍
03/03/2007 +1 days 🔍
03/05/2007 +2 days 🔍
03/05/2007 +0 days 🔍
03/05/2007 +0 days 🔍
03/05/2007 +0 days 🔍
03/05/2007 +0 days 🔍
03/07/2007 +1 days 🔍
03/12/2007 +5 days 🔍
01/12/2025 +6516 days 🔍

Sourcesinfo

Product: wordpress.com

Advisory: ifsec.blogspot.com
Researcher: Ivan Fratric
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-1277 (🔍)
GCVE (CVE): GCVE-0-2007-1277
GCVE (VulDB): GCVE-100-2970
CERT: 🔍
X-Force: 32807 - WordPress theme.php command execution, High Risk
SecurityFocus: 22797 - Wordpress 2.1.1 Command Execution Backdoor Vulnerability
Secunia: 24374 - WordPress Command Execution and PHP "eval()" Injection, Highly Critical
OSVDB: 33909 - WordPress wp-includes/theme.php iz Variable Arbitrary Command Execution
Vulnerability Center: 14592 - WordPress Arbitrary Command Execution via Backdoor, High
Vupen: ADV-2007-0812

Entryinfo

Created: 03/07/2007 10:22
Updated: 01/12/2025 19:13
Changes: 03/07/2007 10:22 (87), 09/11/2017 16:33 (5), 03/15/2021 10:28 (3), 01/12/2025 19:13 (15)
Complete: 🔍
Cache ID: 216:D48:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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