CVE-2006-6383PHP 5.2.0 and 4.4 allows local users to bypass safe_mode and open_basedir restrictions via a malicious path and a null byte before a ";"…
- 4.6MediumCVSS base score
- 1.1%Exploitation in 30 daysEPSS · top 34% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
PHP 5.2.0 and 4.4 allows local users to bypass safe_mode and open_basedir restrictions via a malicious path and a null byte before a ";" in a session_save_path argument, followed by an allowed path, which causes a parsing inconsistency in which PHP validates the allowed path but sets session.save_path to the malicious path.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it.
Show the exploits1
Exploit-DB1 entry
- PHP 5.2 - Session.Save_Path() 'Safe_mode' / 'open_basedir' Restriction Bypass (Exploit-DB entry) (opens in a new tab)
EDB-ID 29239local, phppublished 8 Dec 2006Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
- 3 days later
· 3 days later
Published
- 18 years later
· 18 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 1.1% · top 34% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.6.
Affected products
n/a
- affected n/a
References
References10
- 24022 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- OpenPKG-SA-2007.010 (opens in a new tab)vendor-advisoryx_refsource_OPENPKGx_transferred
- 20061208 PHP 5.2.0 session.save_path safe_mode and open_basedir bypass (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 24514 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 2000 (opens in a new tab)third-party-advisoryx_refsource_SREASONx_transferred
- http://cvs.php.net/viewcvs.cgi/php-src/ext/session/session.c?r1=1.336.2.53.2.7&r2=1.336.2.53.2.8 (opens in a new tab)x_refsource_CONFIRMx_transferred
- MDKSA-2007:038 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- 20061208 PHP 5.2.0 session.save_path safe_mode and open_basedir bypass (opens in a new tab)third-party-advisoryx_refsource_SREASONRESx_transferred
- SUSE-SA:2007:020 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 21508 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2006-6366 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2006-6383)Record last updated .