Security readout for executives and security teams
Plain-English summary
CVE-2026-24543 is a medium-severity access-control flaw in the WordPress Materialis Companion plugin through version 1.3.52. A logged-in user may be able to perform an action they should not be authorized to perform. The documented impact is limited integrity impact, with no stated confidentiality or availability impact.
Executive priority
Treat as a routine but timely WordPress plugin governance issue. Prioritize sites with customer logins, many contributors, or weak account hygiene. The current evidence supports moderate urgency, not emergency response, unless your environment has high-risk authenticated users.
Technical view
The issue is CWE-862 Missing Authorization in Horea Radu Materialis Companion, package materialis-companion, affecting versions up to and including 1.3.52. CVSS 3.1 is 4.3: network exploitable, low complexity, low privileges required, no user interaction, unchanged scope, low integrity impact.
Likely exposure
Exposure is most likely on WordPress sites running Materialis Companion version 1.3.52 or earlier, especially where untrusted or numerous authenticated users have accounts. The source data does not identify specific vulnerable endpoints, roles, or actions.
Exploitation context
No active exploitation is stated in the provided sources, and the CVE is not listed as KEV in the bundle. Exploitation requires authentication, reducing anonymous internet risk, but compromised or low-privilege accounts could still create business impact through unauthorized changes.
Researcher notes
Public details are sparse. The record identifies missing authorization and a CVSS vector but not affected functions, endpoint names, proof of concept, or fixed version. Avoid assuming exploitability beyond authenticated low-privilege access and low integrity impact until vendor details are available.
Mitigation direction
- Inventory WordPress sites for the Materialis Companion plugin and version.
- Update the plugin if vendor or WordPress guidance identifies a fixed release.
- Disable or remove the plugin where it is not business-critical.
- Limit WordPress accounts to necessary users and least-privilege roles.
- Monitor Patchstack and vendor channels for remediation details.
Validation and detection
- Confirm whether Materialis Companion is installed on each WordPress site.
- Record plugin versions and flag any at or below 1.3.52.
- Review user roles and remove unnecessary authenticated access.
- Check security logs for unusual authenticated changes or plugin-related actions.
- Track vendor or Patchstack updates for fixed-version confirmation.
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-862: 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-2026-24543 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:N/I:L/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:N/I:L/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:N/I:L/A:N
Source materials
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.
Missing Authorization
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.