CVE-2026-66617
MediumCVSS 6.5Summary
Cross Site Scripting (XSS) vulnerability in PublishPress Series plugin up to version 3.1.3, affecting Contributor accounts. It allows injection of malicious JavaScript into publication content, which executes in other users' browsers.
Risk Assessment
The XSS attack can lead to data theft, session hijacking, or unauthorized actions on behalf of the victim. This may compromise user security and site integrity.
Recommendation
Update the PublishPress Series plugin to version 3.1.4 or later. Also, apply XSS filters and restrict contributor permissions.
Other vulnerabilities in PublishPress Series
See all- CVE-2026-74005Medium
Cross Site Request Forgery (CSRF) vulnerability in PublishPress Series plugin up to version 3.1.3. CSRF attacks can be performed without authentication, allowing forced actions on behalf of a logged-in admin.
- CVE-2026-66630High
The PublishPress Series plugin in versions up to and including 3.1.3 contains an Administrator SQL Injection vulnerability. This enables an administrator-level user to inject malicious SQL code into database queries.
- CVE-2026-27365Medium
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in PublishPress PublishPress Series allows Stored XSS. This issue affects PublishPress Series from n/a through 2.17.0.
Original NVD description (English source)
Contributor Cross Site Scripting (XSS) in PublishPress Series <= 3.1.3 versions.