Vulnerability in WordPress
CVE-2016-2221
Open redirect vulnerability in the wp_validate_redirect function in wp-includes/pluggable.php in WordPress before 4.4.2 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a malformed URL that triggers incorrect hostname parsing, as demonstrated by an https:example.com URL.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.044 (91.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.044 · newest: 0.044 · change: 0.000
Affected products
Public proof-of-concept exploits
References
- codex.wordpress.org/Version_4.4.2 (Patch)
- www.securitytracker.com/id/1034933 (vdb-entry)
- www.securityfocus.com/bid/82463 (vdb-entry)
- core.trac.wordpress.org/changeset/36444 (Patch)
- wordpress.org/news/2016/02/wordpress-4-4-2-security-and-maintenance-release/ (Patch, Vendor Advisory)
- www.debian.org/security/2016/dsa-3472 (vendor-advisory)
- wpvulndb.com/vulnerabilities/8377
Frequently asked questions
- What is CVE-2016-2221?
- CVE-2016-2221 is a high-severity vulnerability in WordPress. CVSS score: 7.4/10. Published 2016-05-22.
- How severe is CVE-2016-2221?
- High severity. CVSS v3 base score is 7.4 out of 10.
- Is CVE-2016-2221 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.