Alexander Palmo Simple PHP Blog up to 0.5.1 languages_cgi.php blog_language1 path traversal

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Alexander Palmo Simple PHP Blog up to 0.5.1. It has been rated as problematic. Affected is an unknown function of the file languages_cgi.php. Performing a manipulation of the argument blog_language1 results in path traversal. This vulnerability was named CVE-2009-4421. In addition, an exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Alexander Palmo Simple PHP Blog up to 0.5.1 (Blog Software). This affects an unknown function of the file languages_cgi.php. The manipulation of the argument blog_language1 with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Directory traversal vulnerability in languages_cgi.php in Simple PHP Blog 0.5.1 and earlier allows remote authenticated users to include and execute arbitrary local files via a .. (dot dot) in the blog_language1 parameter.

The weakness was presented 12/24/2009 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-2009-4421 since 12/24/2009. The exploitability is told to be easy. It is possible to initiate the attack remotely. The successful exploitation requires a authentication. Technical details and a public exploit are known. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

A public exploit has been developed in Perl. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. By approaching the search of inurl:languages_cgi.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (54970), Exploit-DB (10604) and SecurityFocus (BID 37434†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Vendor

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/21/2009 🔍
12/24/2009 +3 days 🔍
12/24/2009 +0 days 🔍
12/24/2009 +0 days 🔍
03/18/2015 +1910 days 🔍
08/20/2025 +3807 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Status: Not defined

CVE: CVE-2009-4421 (🔍)
GCVE (CVE): GCVE-0-2009-4421
GCVE (VulDB): GCVE-100-51303
X-Force: 54970 - Simple PHP Blog blog_language1 parameter file include
SecurityFocus: 37434 - Simple PHP Blog 'blog_language1' Parameter Local File Include Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/18/2015 15:15
Updated: 08/20/2025 01:48
Changes: 03/18/2015 15:15 (52), 12/21/2017 10:38 (7), 08/20/2025 01:48 (17)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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