Vulnerability Description
The ER Swiffy Insert plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the [swiffy] shortcode in all versions up to and including 1.0.0. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes ('n', 'w', 'h'). These attributes are extracted using extract() and directly interpolated into the HTML output without any escaping such as esc_attr(). This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/er-swiffy-insert/tags/1.0.0/er-swiffy
- https://plugins.trac.wordpress.org/browser/er-swiffy-insert/tags/1.0.0/er-swiffy
- https://plugins.trac.wordpress.org/browser/er-swiffy-insert/trunk/er-swiffy-inse
- https://plugins.trac.wordpress.org/browser/er-swiffy-insert/trunk/er-swiffy-inse
- https://www.wordfence.com/threat-intel/vulnerabilities/id/074d9712-9b26-47da-9e2
FAQ
What is CVE-2026-4082?
CVE-2026-4082 is a vulnerability with a CVSS score of 6.4 (MEDIUM). The ER Swiffy Insert plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the [swiffy] shortcode in all versions up to and including 1.0.0. This is due to insufficient input sanitizat...
How severe is CVE-2026-4082?
CVE-2026-4082 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-4082?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.