WordPress security changelog
LOW CVE-2014-5240 Modified

wp-includes/pluggable.php in WordPress before 3.9.2, when Multisite is enabled,: Cross-site scripting

wp-includes/pluggable.php in WordPress before 3.9.2, when Multisite is enabled, is affected by cross-site scripting. Exposure depends on how the affected operation is made reachable by the site. Injected script can execute in the affected site's origin when the vulnerable output is viewed.

CVE / CNA score 2.1 CVSS · cve@mitre.org
NVD score 2.1 CVSS 2.0 · nvd@nist.gov
Component
wp-includes/pluggable.php in WordPress before 3.9.2, when Multisite is enabled,
Plugin slug
Not applicable
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Aug 18, 2014
Weakness
CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
What to do

Update, patch or deactivate.

Update wp-includes/pluggable.php in WordPress before 3.9.2, when Multisite is enabled, 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

Cross-site scripting (XSS) vulnerability in wp-includes/pluggable.php in WordPress before 3.9.2, when Multisite is enabled, allows remote authenticated administrators to inject arbitrary web script or HTML, and obtain Super Admin privileges, via a crafted avatar URL.

NVD vector: AV:N/AC:H/Au:S/C:N/I:P/A:N

References

Primary and upstream sources