Security readout for executives and security teams
Plain-English summary
This is a WordPress plugin access-control flaw. If Just Custom Fields version 3.3.2 or earlier is installed, a logged-in user may perform actions the site did not intend to allow. The published scoring indicates limited integrity impact, not data theft or outage.
Executive priority
Treat as a targeted maintenance issue, not an emergency, unless affected sites allow broad authenticated access. Prioritize inventory and remediation during the next WordPress security update cycle.
Technical view
CVE-2023-46203 is a CWE-862 missing authorization issue in JustCoded / Alex Prokopenko Just Custom Fields through 3.3.2. CVSS 3.1 is 4.3: network reachable, low complexity, low privileges required, no user interaction, unchanged scope, low integrity impact only.
Likely exposure
Exposure is limited to WordPress environments using the Just Custom Fields plugin through version 3.3.2. Risk is higher on sites with multiple, delegated, or untrusted authenticated users.
Exploitation context
The source bundle does not show CISA KEV listing or any cited evidence of active exploitation. The CVSS vector indicates exploitation requires an authenticated low-privilege user and does not require user interaction.
Researcher notes
Evidence is concise: affected product, version range, CWE, and CVSS are available, but endpoint details, proof-of-concept status, and a named fixed version are not provided in the source bundle.
Mitigation direction
- Inventory WordPress sites for the Just Custom Fields plugin.
- Identify installations running version 3.3.2 or earlier.
- Check vendor, WordPress, or Patchstack guidance for an available fix.
- Disable or remove the plugin where it is not required.
- Restrict low-privilege WordPress accounts to least-necessary roles.
Validation and detection
- Confirm plugin presence and version from trusted asset inventory or WordPress administration.
- Review WordPress user roles for unnecessary authenticated access.
- Check recent content or custom-field changes for unauthorized modifications.
- Verify whether vendor guidance documents a patched release or workaround.
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-2023-46203 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.