Buy Me a Coffee – Button and Widget Plugin <= 3.6 - Authenticated (Subscriber+) Stored Cross-Site Scripting
Vulnerability Description
The "Buy Me a Coffee – Button and Widget Plugin" plugin for WordPress is vulnerable to Cross-Site Scripting in versions up to, and including, 3.6 due to insufficient sanitization and escaping on the 'text value set via the bmc_post_reception action. This makes it possible for authenticated attackers, with subscriber-level permissions, and above to inject arbitrary web scripts into pages that execute whenever a victim accesses a page with the injected scripts.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- István Márton
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ed9f8948-085b-4ac5-befd-c70085aa23cd?source=cve
- https://plugins.trac.wordpress.org/browser/buymeacoffee/trunk/includes/class-buy-me-a-coffee.php?rev=2319979#L162
- https://plugins.trac.wordpress.org/browser/buymeacoffee/trunk/admin/class-buy-me-a-coffee-admin.php?rev=2816542
- https://plugins.trac.wordpress.org/changeset?old_path=%2Fbuymeacoffee%2Ftags%2F3.6&old=2922493&new_path=%2Fbuymeacoffee%2Ftags%2F3.7&new=2922493&sfp_email=&sfph_mail=
Affected Vendor
buymeacoffee
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