CVE-2010-5099

TYPO3 <4.2.16, 4.3.9, 4.4.5 - Path Traversal

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2010-5099. PoCs published by ikki.

AI-analyzed exploit summary This exploit leverages a non-typesafe comparison flaw (CVE-2010-3714) and a fileDenyPattern bypass in TYPO3 to retrieve arbitrary files without authentication. It first discloses the encryption key and then allows file retrieval via crafted requests.

Description

The fileDenyPattern functionality in the PHP file inclusion protection API in TYPO3 4.2.x before 4.2.16, 4.3.x before 4.3.9, and 4.4.x before 4.4.5 does not properly filter file types, which allows remote attackers to bypass intended access restrictions and access arbitrary PHP files, as demonstrated using path traversal sequences with %00 null bytes and CVE-2010-3714 to read the TYPO3 encryption key from localconf.php.

Exploits (1)

exploitdb WORKING POC
by ikki · phpwebappsphp
https://www.exploit-db.com/exploits/15856

This exploit leverages a non-typesafe comparison flaw (CVE-2010-3714) and a fileDenyPattern bypass in TYPO3 to retrieve arbitrary files without authentication. It first discloses the encryption key and then allows file retrieval via crafted requests.

Classification
Working Poc 95%
Attack Type
Info Leak
Complexity
Moderate
Reliability
Reliable
Target: TYPO3 versions 4.2.15, 4.3.7, or 4.4.4
No auth needed
Prerequisites: Vulnerable TYPO3 installation · Network access to the target
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (9)

Core 9
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/64180
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/35770
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2012/05/12/5
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2011/01/13/2
Exploit exploit x_refsource_exploit-db
http://www.exploit-db.com/exploits/15856
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2012/05/11/3
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2012/05/10/7

Scores

EPSS 0.0525
EPSS Percentile 90.2%

Details

CWE
CWE-20
Status published
Products (31)
typo3/cms 4.2.0 - 4.2.16Packagist
typo3/typo3 4.2.0
typo3/typo3 4.2.1
typo3/typo3 4.2.2
typo3/typo3 4.2.3
typo3/typo3 4.2.4
typo3/typo3 4.2.5
typo3/typo3 4.2.6
typo3/typo3 4.2.7
typo3/typo3 4.2.8
... and 21 more
Published May 30, 2012
Tracked Since Feb 18, 2026