CVE-2013-4338
HIGH · CVSS 7.5EPSS 9.1%EU EUVD
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.
Key facts
- CVSS score
- 7.5 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P- Weakness (CWE)
- CWE-94
- EPSS score
- 9.1% (95th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2013-4224)
- Published
- September 12, 2013
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2013-4224 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- wordpress / wordpress
References
- http://codex.wordpress.org/Version_3.6.1(Vendor Advisory)
- http://core.trac.wordpress.org/changeset/25325(Exploit, Patch)
- http://lists.fedoraproject.org/pipermail/package-announce/2013-September/116828.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-September/116832.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-September/117118.html
- http://wordpress.org/news/2013/09/wordpress-3-6-1/(Patch, Vendor Advisory)
- http://www.debian.org/security/2013/dsa-2757
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
Query CVEs from your AI assistant
The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.
Add the CVE brain