HIGH
wp-includes/functions.php in WordPress before 3.6.1 does not properly determine whether data has been serialized, which allows remote attackers to execute arbitrary code by triggering erroneous PHP unserialize operations
Published Sep 12, 2013
7.5
HIGHCVSS 2.0
EPSS 8.75%
Description
wp-includes/functions.php in WordPress before 3.6.1 does not properly determine whether data has been serialized, which allows remote attackers to execute arbitrary code by triggering erroneous PHP unserialize operations.
Affected products
Remediation
No remediation recorded yet.
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.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
8.75% 0.08749
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.08749
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 (45 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 8.75% (0.08749) | 95.01th | v5 (v2026.06.15) |
| Jun 15, 2026 | 8.75% (0.08749) | 94.47th | v5 (v2026.06.15) |
| Mar 4, 2026 | 9.59% (0.09588) | 92.73th | v4 (v2025.03.14) |
| Mar 1, 2026 | 4.98% (0.04985) | 89.55th | v4 (v2025.03.14) |
| Feb 4, 2026 | 9.59% (0.09588) | 92.67th | v4 (v2025.03.14) |
| Feb 1, 2026 | 4.98% (0.04985) | 89.47th | v4 (v2025.03.14) |
| Jan 4, 2026 | 9.59% (0.09588) | 92.61th | v4 (v2025.03.14) |
| Jan 1, 2026 | 4.98% (0.04985) | 89.42th | v4 (v2025.03.14) |
| Dec 28, 2025 | 9.59% (0.09588) | 92.60th | v4 (v2025.03.14) |
| Dec 27, 2025 | 11.01% (0.11010) | 93.24th | v4 (v2025.03.14) |
| Dec 4, 2025 | 9.59% (0.09588) | 92.56th | v4 (v2025.03.14) |
| Dec 1, 2025 | 4.98% (0.04985) | 89.34th | v4 (v2025.03.14) |
| Nov 4, 2025 | 9.59% (0.09588) | 92.51th | v4 (v2025.03.14) |
| Nov 1, 2025 | 4.98% (0.04985) | 89.25th | v4 (v2025.03.14) |
| Oct 28, 2025 | 9.59% (0.09588) | 92.50th | v4 (v2025.03.14) |
| Oct 27, 2025 | 11.01% (0.11010) | 93.13th | v4 (v2025.03.14) |
| Oct 4, 2025 | 9.59% (0.09588) | 92.56th | v4 (v2025.03.14) |
| Oct 1, 2025 | 4.98% (0.04985) | 89.28th | v4 (v2025.03.14) |
| Sep 4, 2025 | 11.01% (0.11010) | 93.18th | v4 (v2025.03.14) |
| Sep 1, 2025 | 5.01% (0.05013) | 89.37th | v4 (v2025.03.14) |
| Aug 4, 2025 | 11.01% (0.11010) | 93.15th | v4 (v2025.03.14) |
| Aug 1, 2025 | 5.01% (0.05013) | 89.38th | v4 (v2025.03.14) |
| Jul 30, 2025 | 11.01% (0.11010) | 93.14th | v4 (v2025.03.14) |
| Jul 5, 2025 | 9.59% (0.09588) | 92.49th | v4 (v2025.03.14) |
| Jul 1, 2025 | 4.98% (0.04985) | 89.27th | v4 (v2025.03.14) |
| Jun 4, 2025 | 9.59% (0.09588) | 92.44th | v4 (v2025.03.14) |
| Jun 1, 2025 | 4.98% (0.04985) | 89.22th | v4 (v2025.03.14) |
| May 4, 2025 | 9.59% (0.09588) | 92.42th | v4 (v2025.03.14) |
| May 1, 2025 | 4.98% (0.04985) | 89.14th | v4 (v2025.03.14) |
| Apr 6, 2025 | 9.59% (0.09588) | 92.14th | v4 (v2025.03.14) |
| Apr 5, 2025 | 4.98% (0.04985) | 88.75th | v4 (v2025.03.14) |
| Apr 3, 2025 | 9.59% (0.09588) | 92.14th | v4 (v2025.03.14) |
| Apr 2, 2025 | 4.98% (0.04985) | 88.73th | v4 (v2025.03.14) |
| Mar 30, 2025 | 9.59% (0.09588) | 92.12th | v4 (v2025.03.14) |
| Mar 29, 2025 | 23.59% (0.23591) | 93.55th | v4 (v2025.03.14) |
| Mar 24, 2025 | 9.59% (0.09588) | 92.12th | v4 (v2025.03.14) |
| Mar 23, 2025 | 23.59% (0.23591) | 95.31th | v4 (v2025.03.14) |
| Mar 17, 2025 | 9.59% (0.09588) | 92.29th | v4 (v2025.03.14) |
| Dec 17, 2024 | 9.10% (0.09104) | 94.64th | v3 (v2023.03.01) |
| Sep 11, 2023 | 10.60% (0.10596) | 94.32th | v3 (v2023.03.01) |
| Mar 9, 2023 | 10.80% (0.10803) | 94.14th | v3 (v2023.03.01) |
| Mar 7, 2023 | 10.74% (0.10740) | 94.12th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.78% (0.07777) | 93.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.78% (0.07777) | 92.60th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.78% (0.07777) | 81.54th | v2 (v2022.01.01) |
Weaknesses (1)
References (7)
- http://codex.wordpress.org/Version_3.6.1 x_refsource_CONFIRMVendor Advisory
- http://core.trac.wordpress.org/changeset/25325 x_refsource_CONFIRMExploitPatch
- http://lists.fedoraproject.org/pipermail/package-announce/2013-September/116828.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2013-September/116832.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2013-September/117118.html vendor-advisoryx_refsource_FEDORA
- http://wordpress.org/news/2013/09/wordpress-3-6-1/ x_refsource_CONFIRMPatchVendor Advisory
- http://www.debian.org/security/2013/dsa-2757 vendor-advisoryx_refsource_DEBIAN
| Link | Providers | Tags |
|---|---|---|
| http://codex.wordpress.org/Version_3.6.1 | x_refsource_CONFIRMVendor Advisory | |
| http://core.trac.wordpress.org/changeset/25325 | x_refsource_CONFIRMExploitPatch | |
| http://lists.fedoraproject.org/pipermail/package-announce/2013-September/116828.html | vendor-advisoryx_refsource_FEDORA | |
| http://lists.fedoraproject.org/pipermail/package-announce/2013-September/116832.html | vendor-advisoryx_refsource_FEDORA | |
| http://lists.fedoraproject.org/pipermail/package-announce/2013-September/117118.html | vendor-advisoryx_refsource_FEDORA | |
| http://wordpress.org/news/2013/09/wordpress-3-6-1/ | x_refsource_CONFIRMPatchVendor Advisory | |
| http://www.debian.org/security/2013/dsa-2757 | vendor-advisoryx_refsource_DEBIAN |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Sep 12, 2013
Updated Aug 6, 2024
Reserved Jun 12, 2013
Link CVE-2013-4338
CISA Vulnrichment
Updated n/a