Medium severity6.4NVD Advisory· Published Dec 12, 2025· Updated Apr 15, 2026
CVE-2025-11876
CVE-2025-11876
Description
The Mailgun Subscriptions plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'mailgun_subscription_form' shortcode in all versions up to, and including, 1.3.1 due to insufficient input sanitization and output escaping on user supplied attributes. 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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3(expand)+ 1 more
- (no CPE)
- (no CPE)range: <=1.3.1
Patches
Vulnerability mechanics
References
4- github.com/flightless/mailgun-subscriptions/pull/8/commits/a8b597e3a09f3a1b76436d09de434fd9bfe29f64nvd
- plugins.trac.wordpress.org/browser/mailgun-subscriptions/tags/1.2.0/Mailgun_Subscriptions/Subscription_Form.phpnvd
- plugins.trac.wordpress.org/changesetnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/149e60cc-9612-4651-b02d-4b68a3533d36nvd
News mentions
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