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Fencer Intel
medium 6.8

CVE-2010-5099 json

TYPO3 Path Traversal vulnerability

published 2012-05-30 14 y ago modified 2026-06-16 4 mo ago also GHSA-66j3-66cp-6c2m , EUVD-2010-5061

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.1%
EPSS 3.1% chance of exploitation in 30 days, percentile 87%
public exploits
1
Exploit-DB

Summary

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.

Patch / fix

  • packagist typo3/cms 4.2.16, 4.3.9, 4.4.5

Timeline

  1. First public exploit (EDB-15856)
  2. Published

Exploit prediction

3.08% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-15856 TYPO3 - Arbitrary File Retrieval webapps, 2010-12-29
  • blog.nibblesec.org http://blog.nibblesec.org/2010/12/typo3-sa-2010-020-typo3-sa-2010-022.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected packages

ecosystem package affected fixed in
packagist typo3/cms
>=4.2.0, <4.2.16
>=4.3.0, <4.3.9
>=4.4.0, <4.4.5
4.2.16
4.3.9
4.4.5

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.