WordPress security changelog
HIGH CVE-2016-2222 Modified

WordPress component: Server-side request forgery

WordPress component is affected by server-side request forgery. Exposure depends on how the affected operation is made reachable by the site. The vulnerable server can be induced to make attacker-selected network requests.

CVE / CNA score 8.6 CVSS · security@debian.org
NVD score 8.6 CVSS 3.0 · nvd@nist.gov
Component
WordPress component
Plugin slug
Not applicable
Affected
See vendor advisory
Safe version
See mitigation notes
Published
May 22, 2016
Weakness
NVD-CWE-Other
What to do

Update, patch or deactivate.

Update WordPress component to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical 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.

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

References

Primary and upstream sources