Quick answers
- Is CVE-2026-33384 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-33384 being exploited in the wild.
- How severe is CVE-2026-33384?
- Informational severity, with a CVSS score of 0, published 29 May 2026.
- Which products and versions are affected?
- OpenSolution QuickCMS Up to 6.8 (prior to 2026-05-15 patch).
- Is there a fix for CVE-2026-33384?
- A patch was published on 2026-05-15: Patch for version 6.8 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-33384 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-33384?
- Check whether you run OpenSolution Quick.CMS. 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
QuickCMS is vulnerable to a session fixation attack (CWE-384). The application fails to regenerate the session identifier upon a successful login, allowing a session ID established prior to authentication to persist. An attacker can provide a known session ID to a victim (e.g., via URL parameters or cookie injection) and then hijack the session once the victim authenticates. This issue affects all versions up to 6.8 and was addressed in a specific security patch released on May 15, 2026.
Affected products
- OpenSolution QuickCMS Up to 6.8 (prior to 2026-05-15 patch)
Timeline
- 2026-05-15: patched: Patch for version 6.8 released
- 2026-05-29: advisory: Public disclosure by CERT Polska