CVE-2013-4338: wordpress Code Injection
CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2013-4338DEBIAN-CVE-2013-4338
Published 12-09-2013Last modified 06-08-2024
Vulnerability summary
CVE-2013-4338 is a high (CVSS 8.8) Code Injection vulnerability in wordpress. EPSS estimates a 8.75% chance of exploitation in the next 30 days, higher than 95.1% of scored vulnerabilities. 1 public exploit is recorded. Fixed in 3.6.1.
CVSS score
8.8/10
010
High · v3.1 (wordfence)EPSS score
8.75%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 2Timeline
- 12-09-2013PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 2 sources · 2 versionsHigh 8.8Preferred score · wordfence (Source)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
8.75%
Chance of exploitation in the next 30 days
Percentile
95%
Versus all other CVEs
30-day change
0.00 pp
From 8.75% on 19-09-2026
19-09-202619-10-2026
EPSS score8.75%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (core.trac.wordpress.org)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-94Improper Control of Generation of Code ('Code Injection')The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
- CWE-502Deserialization of Untrusted DataThe product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
Affected systems
Wordpress2 products
- wordpress≤ 3.6 (fixed in 3.6.1)
- wordpress≤ 3.6
Debian1 product
- wordpress< 3.6.1+dfsg-1
Ubuntu1 product
- wordpress< 3.6.1+dfsg-1
3 vendors · 4 products
References
11 links- lists.fedoraproject.org/pipermail/package-announce/2013-September/116832.htmlVendor AdvisoryX Refsource FEDORA
- lists.fedoraproject.org/pipermail/package-announce/2013-September/116828.htmlVendor AdvisoryX Refsource FEDORA
- lists.fedoraproject.org/pipermail/package-announce/2013-September/117118.htmlVendor AdvisoryX Refsource FEDORA