php open_basedir bypass in session extension with symlink
Published Sep 4, 2007
4.4
MEDIUMCVSS 2.0
EPSS 0.61%
Description
The session extension in PHP before 5.2.4 might allow local users to bypass open_basedir restrictions via a session file that is a symlink.
Affected products
No data.
- ≤ 5.2.3
- 1.0
- 2.0
- 2.0b10
- 3.0
- 3.0.1
- 3.0.2
- 3.0.3
- 3.0.4
- 3.0.5
- 3.0.6
- 3.0.7
- 3.0.8
- 3.0.9
- 3.0.10
- 3.0.11
- 3.0.12
- 3.0.13
- 3.0.14
- 3.0.15
- 3.0.16
- 3.0.17
- 3.0.18
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0.0
- 4.0.1
- 4.0.2
- 4.0.3
- 4.0.4
- 4.0.5
- 4.0.6
- 4.0.7
- 4.1.0
- 4.1.1
- 4.1.2
- 4.2.0
- 4.2.1
- 4.2.2
- 4.2.3
- 4.3.0
- 4.3.1
- 4.3.2
- 4.3.3
- 4.3.4
- 4.3.5
- 4.3.6
- 4.3.7
- 4.3.8
- 4.3.9
- 4.3.10
- 4.3.11
- 4.4.0
- 4.4.1
- 4.4.2
- 4.4.3
- 4.4.4
- 4.4.5
- 4.4.6
- 4.4.7
- 4.4.8
- 4.4.9
- 5.0.0
- 5.0.0
- 5.0.0
- 5.0.0
- 5.0.0
- 5.0.0
- 5.0.0
- 5.0.0
- 5.0.1
- 5.0.2
- 5.0.3
- 5.0.4
- 5.0.5
- 5.1.0
- 5.1.1
- 5.1.2
- 5.1.3
- 5.1.4
- 5.1.5
- 5.1.6
- 5.2.0
- 5.2.1
- 5.2.2
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Red Hat statement
We do not consider these to be security issues. For more details see https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=169857#c1 and https://www.php.net/security-note.php
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.61% (0.00607) | 47.11th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.61% (0.00607) | 44.19th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.18% (0.00180) | 37.26th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.05% (0.00048) | 19.72th | v3 (v2023.03.01) |
| May 7, 2024 | 0.05% (0.00047) | 16.19th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00047) | 14.16th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (17)
- http://secunia.com/advisories/26642 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://secunia.com/advisories/26822 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/26838 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/27102 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/27377 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.gentoo.org/security/en/glsa/glsa-200710-02.xml vendor-advisoryx_refsource_GENTOO
- http://www.php.net/ChangeLog-5.php#5.2.4 x_refsource_CONFIRM
- http://www.php.net/releases/5_2_4.php x_refsource_CONFIRM
- http://www.trustix.org/errata/2007/0026/ vendor-advisoryx_refsource_TRUSTIX
- http://www.vupen.com/english/advisories/2007/3023 vdb-entryx_refsource_VUPENVendor Advisory
- https://access.redhat.com/security/cve/CVE-2007-4652 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=277971 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/36387 vdb-entryx_refsource_XF
- https://issues.rpath.com/browse/RPL-1693 x_refsource_CONFIRM
- https://issues.rpath.com/browse/RPL-1702 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2007-4652
- https://www.cve.org/CVERecord?id=CVE-2007-4652
Change history (0)
No recorded changes yet.