CVE-2013-4339

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 7.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2013-09-12 · updated 2026-06-16
Weakness: CWE-20

Description

WordPress before 3.6.1 does not properly validate URLs before use in an HTTP redirect, which allows remote attackers to bypass intended redirection restrictions via a crafted string.

Affected products

WordPress: through 3.6

References

http://codex.wordpress.org/Version_3.6.1
http://core.trac.wordpress.org/changeset/25323
http://core.trac.wordpress.org/changeset/25324
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://seclists.org/fulldisclosure/2013/Dec/174
http://wordpress.org/news/2013/09/wordpress-3-6-1/
http://www.debian.org/security/2013/dsa-2757
http://www.osvdb.org/101181
http://codex.wordpress.org/Version_3.6.1
http://core.trac.wordpress.org/changeset/25323

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