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CVE Record

CVE-2023-6996: Display custom fields in the frontend – Post and User Profile Fields <= 1.2.1 - Authenticated (Contributor+) Code Injection

The Display custom fields in the frontend – Post and User Profile Fields plugin for WordPress is vulnerable to Code Injection via the plugin's vg_display_data shortcode in all versions up to, and including, 1.2.1 due to insufficient input validation and restriction on access to that shortcode. This makes it possible for authenticated attackers with contributor-level and above permissions to call arbitrary functions and execute code.

HighCVSS 8.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A WordPress plugin can let a logged-in user with Contributor-level access or higher trigger code execution through a shortcode. If the plugin is installed on a site with untrusted or compromised contributor accounts, the impact can include full site compromise.

Executive priority

Treat this as urgent for public WordPress sites using the plugin with multiple content users. Prioritize inventory and containment because the reported impact is code execution, not just data exposure.

Technical view

CVE-2023-6996 is CWE-94 code injection in the Display custom fields in the frontend plugin through the vg_display_data shortcode. Versions up to and including 1.2.1 lack sufficient input validation and shortcode access restriction, allowing authenticated Contributor+ users to call arbitrary functions and execute code.

Likely exposure

Exposure is most likely on WordPress sites running this plugin at version 1.2.1 or older, especially where Contributor, Author, Editor, or Administrator accounts are externally managed, numerous, dormant, or weakly protected.

Exploitation context

The source bundle does not show CISA KEV listing or confirmed active exploitation. The attacker needs authenticated Contributor-level or higher access, but successful exploitation could affect confidentiality, integrity, and availability.

Researcher notes

The strongest evidence is the CVE description and Wordfence reference. Patch details are not fully described in the supplied bundle beyond a WordPress Trac changeset, so avoid assuming a specific fixed version unless confirmed from vendor sources.

Mitigation direction

  • Inventory WordPress sites for this plugin and version 1.2.1 or older.
  • Check vendor and WordPress plugin guidance for the fixed release before upgrading.
  • Disable or remove the plugin if no verified fixed version is available.
  • Restrict Contributor-level access to trusted users only.
  • Review and harden account security for all WordPress users with content privileges.

Validation and detection

  • Confirm whether the plugin is installed and record its exact version.
  • Review user roles for Contributor-level or higher accounts that are unnecessary or stale.
  • Inspect content for unexpected use of the vg_display_data shortcode.
  • Review application logs for suspicious activity by authenticated content users.
  • Verify remediation against vendor guidance after upgrade, removal, or disablement.
Prepared
Confidence
medium
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · medium confidence lookup

CWE-94: Code execution behavior lookup

Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. 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 lookup
cve · low confidence lookup

CVE-2023-6996 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
8.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
8.8CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

8.8High
CVSS 3.1 vector shape for CVE-2023-6996Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
josevegaDisplay custom fields in the frontend – Post and User Profile Fields0unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-94 · source CWE mapping

Improper Control of Generation of Code ('Code Injection')

Improper Control of Generation of Code ('Code Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.