CVE-2026-12863 pretix CVE debrief

Who should care

Defenders and administrators of Venueless social login implementations should be aware of this vulnerability. Developers and security teams need to assess the risk and apply necessary patches or mitigations to prevent phishing attacks.

Technical summary

The vulnerability (CVE-2026-12863) is caused by an unvalidated redirect in Venueless' social login functionality. This could allow attackers to exploit trusted domains for phishing attacks. The CVSS score is 5.1, indicating a medium severity level. The vulnerability was published on June 22, 2026.

Defensive priority

Medium priority due to potential for phishing attacks via trusted domains in Venueless social login functionality.

Recommended defensive actions

• Review and apply patches or updates provided by Venueless for social login functionality.
• Implement input validation and proper redirect handling in social login features.
• Monitor for suspicious activity related to social login redirects.
• Educate users about potential phishing risks and verify domain authenticity.

Evidence notes

The primary evidence for this vulnerability comes from the CVE record and NVD detail pages. The vulnerability affects Venueless social login functionality, allowing unvalidated redirects that could be exploited for phishing. Verify the authenticity of domains used in social login redirects and monitor for suspicious activity.

Official resources