Provide references for CVE-2015-9539.
Where can I find more information about CVE-2015-9539?
References are available at: https://github.com/cybersecurityworks/Disclosed/issues/4, https://www.openwall.com/lists/oss-security/2015/10/27/2, https://github.com/amansaini/fast-secure-contact-form, https://cybersecurityworks.com/zerodays/cve-2015-9539-fastsecure.html.