CVE intelligence and bounded remediation

CVE-2026-34372 — Sulu is an open-source PHP content management system based on the Symfony framework

Medium CVSS 5.3

Sulu is an open-source PHP content management system based on the Symfony framework. From versions 1.0.0 to before 2.6.22, and 3.0.0 to before 3.0.5, a user which has permission for the Sulu Admin via at least one role could have access to the sub-entities of contacts via the admin API without even have permission for contacts. This issue has been patched in versions 2.6.22 and 3.0.5.

Severity
Medium
CVSS
5.3 (4.0)
Published
2026-03-31
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-288

Affected products

  • sulu / sulu

Showing 1 representative product identities from 2 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Authentication bypass and missing authentication

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Check exposure

  • Map every affected endpoint and protocol path, including alternate ports, legacy routes, recovery flows, service accounts, and machine-to-machine access.
  • Confirm which deployments enable the affected authentication mode and whether the interface is reachable from untrusted networks.
  • Review session, token, credential, and proxy trust configuration without attempting account takeover.

Remediate safely

  • Apply the supported fix and centralize fail-closed authentication before protected request handling.
  • Remove default or embedded credentials, rotate affected secrets and sessions, and bind authentication decisions to the intended audience and channel.
  • Add negative tests for alternate routes, malformed or absent credentials, recovery flows, and proxy-derived identity.

Authoritative sources

Complete CVE record and remediation plan

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