CVE-2016-2222
high
CVSS v3
8.6
CVSS v4 NEW
—
VIR risk
8.6
Description
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.
Predictions
Exploit likelihood
91%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 4.4.2+dfsg-1 |
| debian | bullseye | fixed | 4.4.2+dfsg-1 |
| debian | forky | fixed | 4.4.2+dfsg-1 |
| debian | sid | fixed | 4.4.2+dfsg-1 |
| debian | trixie | fixed | 4.4.2+dfsg-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| wordpress | wordpress | 4.4.1 | |
References
- http://www.debian.org/security/2016/dsa-3472
- http://www.securityfocus.com/bid/82454
- http://www.securitytracker.com/id/1034933
- https://codex.wordpress.org/Version_4.4.2
- https://core.trac.wordpress.org/changeset/36435
- https://hackerone.com/reports/110801
- https://news.ycombinator.com/item?id=20433070
- https://wordpress.org/news/2016/02/wordpress-4-4-2-security-and-maintenance-release/
- https://wpvulndb.com/vulnerabilities/8376
- https://security-tracker.debian.org/tracker/CVE-2016-2222
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.