Security readout for executives and security teams
Plain-English summary
A WordPress plugin used with ProjectHuddle Client Site has missing authorization checks through version 1.0.34. A logged-in user could make a change they should not be allowed to make. The public record rates impact as limited integrity loss, not data theft or outage. Treat it as moderate priority where the plugin is installed.
Executive priority
Moderate. This is not reported as actively exploited and has limited impact, but WordPress plugins are common external attack surfaces. Prioritize sites with this plugin, external access, and many low-privileged users.
Technical view
CVE-2023-51376 is CWE-862 missing authorization in Brainstorm Force ProjectHuddle Client Site, package projecthuddle-child-site, affecting versions through 1.0.34. CVSS 3.1 is 4.3: network reachable, low complexity, low privileges, no user interaction, unchanged scope, low integrity impact, no confidentiality or availability impact.
Likely exposure
Exposure is limited to WordPress environments running ProjectHuddle Client Site version 1.0.34 or earlier. The CVSS vector requires prior low-privileged authentication, so anonymous internet exposure is not established by the bundle. Sites without this plugin or with unaffected versions are not indicated as exposed.
Exploitation context
The source bundle does not show CISA KEV listing or cite active exploitation. The issue appears most relevant where untrusted or broad user registration exists, because exploitation requires a logged-in low-privileged account. No exploit details or weaponized procedures are provided in the supplied sources.
Researcher notes
The bundle identifies missing authorization but does not include endpoint-level details, a fixed version, or vendor advisory text beyond Patchstack and CVE references. Validation should stay inventory-focused unless authorized internal testing and vendor guidance provide safe checks.
Mitigation direction
- Inventory WordPress sites for the projecthuddle-child-site plugin.
- Check vendor and Patchstack guidance for a fixed or recommended version.
- Update or disable the plugin where affected versions are found.
- Limit WordPress account creation and remove unnecessary low-privileged users.
- Review plugin permissions and access controls for exposed sites.
Validation and detection
- Confirm whether ProjectHuddle Client Site is installed on each WordPress site.
- Record installed plugin versions and flag version 1.0.34 or earlier.
- Check whether public or self-service user registration is enabled.
- Review recent low-privileged account activity for unauthorized content or setting changes.
- Verify remediation against vendor or Patchstack guidance before closing.
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-2023-51376 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.