CVE-2016-2221

high
Published 2016-05-22 ยท Modified 2026-05-06
CVSS v3
7.4
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
7.4

Description

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.

Predictions

Exploit likelihood
82%
Patch ETA
โ€”

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 โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed4.4.2+dfsg-1
debian debianbullseyefixed4.4.2+dfsg-1
debian debianforkyfixed4.4.2+dfsg-1
debian debiansidfixed4.4.2+dfsg-1
debian debiantrixiefixed4.4.2+dfsg-1

Application impact

VendorProductVersionsFixed
wordpress wordpresswordpress{"endIncluding":"4.4.1"}

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.