Security readout for executives and security teams
Plain-English summary
CVE-2026-23495 lets a logged-in Pimcore backend user view the full list of Predefined Properties without having the intended property-management permission. This is an information disclosure issue, not a takeover bug. Business risk depends on whether those metadata definitions expose sensitive internal structure, naming, defaults, or workflow details.
Executive priority
Treat as a routine but timely application security update. It requires authenticated backend access and affects confidentiality only, so it is not emergency-level from current evidence. Prioritize faster if many non-admin backend users exist or metadata definitions reveal sensitive business structure.
Technical view
Pimcore Admin Classic Bundle versions before 2.2.3 and 1.7.16 lack adequate server-side function-level authorization on the API endpoint that lists Predefined Properties. An authenticated low-privilege backend user can retrieve configuration metadata for documents, assets, and objects. CVSS is 4.3: network exploitable, low complexity, low privileges, no user interaction, confidentiality impact only.
Likely exposure
Exposure is limited to Pimcore environments using the Admin Classic Bundle in affected ranges: >=2.0.0-RC1 and <2.2.3, or <1.7.16. The attacker must already have authenticated backend access. Public internet exposure of the admin interface would increase operational concern, but the source does not state unauthenticated access.
Exploitation context
No active exploitation is reported in the provided sources, and the CVE is not marked KEV. The issue was confirmed by testing: a backend user without explicit property-management permissions could call the listing endpoint and retrieve all Predefined Properties. Sources do not describe public exploit tooling.
Researcher notes
This is CWE-284 missing function-level authorization. The key control failure is server-side authorization, not UI visibility. Validation should focus on permission boundaries for the Predefined Properties listing after upgrade. Avoid assuming broader property modification impact; the provided sources only support unauthorized listing/read access.
Mitigation direction
- Upgrade Admin Classic Bundle to 2.2.3 or 1.7.16, as applicable.
- Review Pimcore’s GitHub advisory and release notes for deployment-specific guidance.
- Restrict Pimcore backend access to trusted users and networks where operationally feasible.
- Review backend user roles for unnecessary access until upgraded.
Validation and detection
- Inventory Pimcore Admin Classic Bundle versions across environments.
- Confirm affected instances are upgraded to 2.2.3, 1.7.16, or later.
- Verify low-privilege backend users cannot list Predefined Properties without permission.
- Review application logs for unusual backend access to Predefined Properties listings.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-284: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-23495 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/pimcore/pimcore/security/advisories/GHSA-hqrp-m84v-2m2fCVE reference · x_refsource_CONFIRM
- https://github.com/pimcore/admin-ui-classic-bundle/commit/98095949fbeaf11cdf4cadb2989d7454e1b88909CVE reference · x_refsource_MISC
- https://github.com/pimcore/admin-ui-classic-bundle/releases/tag/v1.7.16CVE reference · x_refsource_MISC
- https://github.com/pimcore/admin-ui-classic-bundle/releases/tag/v2.2.3CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Access Control
Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.