Quick answers
- Is CVE-2026-12863 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-12863 being exploited in the wild.
- How severe is CVE-2026-12863?
- Informational severity, with a CVSS score of 5.1, published 22 June 2026.
- Which products and versions are affected?
- Pretix Venueless < d27864a7 (git).
- Is there a fix for CVE-2026-12863?
- A patch was published on 2026-06-22. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-12863 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-12863?
- Check whether you run Pretix Venueless at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An open redirect vulnerability (CWE-601) exists in the social login component of Venueless. The application fails to properly validate the destination URL in the redirect parameter after a user completes the social authentication process. A remote attacker can craft a URL that leverages the trusted domain of the Venueless instance to redirect authenticated users to an arbitrary external site. Exploitation requires the attacker to have low privileges and for a victim to interact with the malicious link. The issue has been addressed in commit d27864a7.
Affected products
- pretix Venueless < d27864a7 (git)
Timeline
- 2026-06-22: disclosed
- 2026-06-22: advisory
- 2026-06-22: patched