Vulnerability Details : CVE-2016-2222
The wp_http_validate_url function in wp-includes/http.php in WordPress before 4.4.2 allows remote attackers to conduct server-side request forgery (SSRF) attacks via a zero value in the first octet of an IPv4 address in the u parameter to wp-admin/press-this.php.
Vulnerability category: Server-side request forgery (SSRF)
Exploit prediction scoring system (EPSS) score for CVE-2016-2222
Probability of exploitation activity in the next 30 days: 1.32%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 85 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2016-2222
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST |
8.6
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N |
3.9
|
4.0
|
NIST |
References for CVE-2016-2222
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https://wpvulndb.com/vulnerabilities/8376
WordPress 3.7-4.4.1 - Local URIs Server Side Request Forgery (SSRF)
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http://www.debian.org/security/2016/dsa-3472
Debian -- Security Information -- DSA-3472-1 wordpress
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http://www.securitytracker.com/id/1034933
WordPress Bugs Let Remote Users Conduct Server-Side Request Forgery and Open Redirect Attacks - SecurityTracker
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https://codex.wordpress.org/Version_4.4.2
Version 4.4.2 | WordPress.orgPatch
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https://core.trac.wordpress.org/changeset/36435
Changeset 36435 – WordPress Trac
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https://news.ycombinator.com/item?id=20433070
WordPress doesn't allow 0.0.0.0/8 in some contexts, as an attempt to block some ... | Hacker News
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https://hackerone.com/reports/110801
#110801 Internal GET SSRF via CSRF with Press This scan featureExploit
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http://www.securityfocus.com/bid/82454
WordPress Prior to 4.4.2 Server Side Request Forgery Security Bypass Vulnerability
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https://wordpress.org/news/2016/02/wordpress-4-4-2-security-and-maintenance-release/
News – WordPress 4.4.2 Security and Maintenance Release – WordPress.orgPatch;Vendor Advisory
Products affected by CVE-2016-2222
- cpe:2.3:a:wordpress:wordpress:4.4.1:*:*:*:*:*:*:*