WordPress security changelog
MEDIUM CVE-2023-5715 Modified

Website Optimization – Plerdy: Cross-site scripting

Website Optimization – Plerdy is affected by cross-site scripting. Exploitation requires at least administrator-level access. Injected script can execute in the affected site's origin when the vulnerable output is viewed.

CVE / CNA score 4.4 CVSS 3.1 · security@wordfence.com
NVD score 4.8 CVSS 3.1 · nvd@nist.gov
Component
Website Optimization – Plerdy
Plugin slug
plerdy-heatmap
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Nov 22, 2023
Weakness
CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Nov 22, 2023 and is one of 1 known issue for this plugin.

What to do

Update, patch or deactivate.

Update Website Optimization – Plerdy 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 Website Optimization – Plerdy plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's tracking code settings in all versions up to, and including, 1.3.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

CVE / CNA vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

NVD vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

References

Primary and upstream sources