Description
EspoCRM through 10.0.8 uses PHP's rand() function to generate tokens for lead-capture opt-in, event invitation, and campaign URLs instead of a cryptographically secure generator. Remote unauthenticated attackers can guess these roughly 31-bit tokens to confirm opt-ins, accept or decline event invitations on behalf of other contacts, and access event details.
Remediation
References
Related Vulnerabilities
WordPress Cookies Security Bypass Weakness (1.5 - 2.3.1)
WordPress 4.1.x Multiple Vulnerabilities (4.1 - 4.1.39)
WordPress Plugin Download Manager Multiple Cross-Site Scripting Vulnerabilities (3.2.48)
Moodle Permissions, Privileges, and Access Controls Vulnerability (CVE-2015-2271)
Drupal Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2012-2922)