WordPress security changelog
MEDIUM CVE-2021-33852 Modified

Post Duplicator: Cross-site scripting

Post Duplicator 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 5.4 CVSS · disclose@cybersecurityworks.com
NVD score 5.4 CVSS 3.1 · nvd@nist.gov
Component
Post Duplicator
Plugin slug
post-duplicator
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Mar 10, 2022
Weakness
CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Mar 10, 2022 and is one of 8 known issues for this plugin.

Update, patch or deactivate.

Update Post Duplicator 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.

Technical description

A cross-site scripting (XSS) attack can cause arbitrary code (JavaScript) to run in a user's browser and can use an application as the vehicle for the attack. The XSS payload given in the "Duplicate Title" text box executes whenever the user opens the Settings Page of the Post Duplicator Plugin or the application root page after duplicating any of the existing posts.

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

Primary and upstream sources