VulnTitan

VulnTitan

The WordPress Vulnerability Index

EG-Series <= 2.1.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

plugin
Medium
  • Vulnerability Database
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  • EG-Series <= 2.1.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
6.4
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
CVE CVE-2025-4126
CVSS 6.4 (Medium)
Publicly Published May 14, 2025
Last Updated May 15, 2025
Researchers muhammad yudha

Description

The EG-Series plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's [series] shortcode in all versions up to, and including, 2.1.1 due to insufficient input sanitization and output escaping on user supplied attributes in the shortcode_title function. This makes it possible for authenticated attackers - with contributor-level access and above, on sites with the Classic Editor plugin activated - to inject arbitrary JavaScript code in the titletag attribute that will execute whenever a user access an injected page.

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Vulnerability Details

Software Type plugin
Software Slug eg-series (view on wordpress.org)
Patched No
Remediation No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
Affected Versions
  • * - 2.1.1

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