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CVE-2016-2222

25
FAUCET Score

CVE-2016-2222 describes a Server-Side Request Forgery (SSRF) vulnerability in the wp_http_validate_url function within WordPress versions prior to 4.4.2. This flaw allows remote attackers to bypass URL validation by using a zero value in the first octet of an IPv4 address, primarily affecting the wp-admin/press-this.php component. Rated with a CVSS score of 8.6 (HIGH), this vulnerability has a network attack vector and low attack complexity, requiring no user interaction or privileges. While the direct impact is high integrity, leading to potential unauthorized actions, confidentiality and availability are not directly impacted. Despite its high severity, there is no evidence of active exploitation, and no public exploit code is available on platforms like Metasploit or ExploitDB. Community discussion and media coverage for this CVE are minimal, indicating a lack of widespread attention or exploitation in the wild.

Impacted Technologies

VendorProductVersion(s)CPE
4.4.1CPE matchmatch criteria
cpe:2.3:a:wordpress:wordpress:4.4.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.6HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
9.28%
Probability of exploitation in next 30 days
EPSS Percentile
94.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0927 is in the 92nd percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

codex.wordpress.org / Version_4.4.2
Patch
core.trac.wordpress.org / changeset/36435
hackerone.com / reports/110801
Exploit
news.ycombinator.com / item
wordpress.org / news/2016/02/wordpress-4-4-2-security-and-maintenance-release
PatchVendor Advisory
wpvulndb.com / vulnerabilities/8376
debian.org / security/2016/dsa-3472
securityfocus.com / bid/82454
securitytracker.com / id/1034933