Description
WordPress Plugin Fast Secure Contact Form is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. WordPress Plugin Fast Secure Contact Form version 3.0.3.1 is vulnerable; other versions may also be affected.
Remediation
Update to plugin version 3.0.3.2 or latest
References
http://www.securityfocus.com/bid/49193/exploit
http://www.htbridge.ch/advisory/xss_in_fast_secure_contact_form.html
http://packetstormsecurity.com/files/view/104136/fastsecure-xss.txt
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WordPress Plugin Email Queue by BestWebSoft Cross-Site Scripting (1.1.1)
MediaWiki Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2015-6727)
Moodle Exposure of Resource to Wrong Sphere Vulnerability (CVE-2021-43560)