Tribal Systems Zenario CMS vulnerable to Session Fixation

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

5.4 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

EPSS

• CVE-2022-4231: 0.47% estimated exploitation activity in the next 30 days; percentile 40.90 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Tribal Systems Zenario CMS 9.3.57595 is vulnerable to session fixation. In Zenario CMS, the user session identifier (authentication token) is issued to the browser prior to authentication but is not changed after user logout and login again into the application when "Remember me" option active. Failing to issue a new session ID following a successful login introduces the possibility for an attacker to set up a trap session on the device the victim is likely to login with. The attack may be initiated remotely and an exploit has been disclosed.

Published by the source

30 Nov 2022, 12:30 UTC

Last modified by the source

31 Jan 2023, 05:03 UTC

Source last checked

26 Oct 2026, 14:00 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-6657-9743-4mc6

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# Patch Next advisory brief: CVE-2022-4231

Advisory: Tribal Systems Zenario CMS vulnerable to Session Fixation
IDs: CVE-2022-4231, GHSA-6657-9743-4mc6
Record: https://patchnext.com/advisories/cve-2022-4231 (revision 1, source checked 26 Oct 2026, 14:00 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.4)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist tribalsystems/zenario: affected <= 9.3.57595

## Suggested inspection (read-only)
- Packagist tribalsystems/zenario: check the installed version with your package manager.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on tribalsystems/zenario.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-6657-9743-4mc6 (GitHub-reviewed advisory GHSA-6657-9743-4mc6 lists affected ranges: Packagist tribalsystems/zenario >=0 <=9.3.57595)

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