Security readout for executives and security teams
Plain-English summary
This WordPress plugin flaw can let logged-in users with contributor-level access or higher view sensitive user data through a shortcode. Exposed data may include emails, usernames, password hashes, and other fields. It is not reported as actively exploited in the provided sources, but the confidentiality impact is high where untrusted contributors exist.
Executive priority
Treat this as a targeted confidentiality risk, not a broad internet-wide emergency. Prioritize remediation on membership sites with many contributors, external authors, agencies, or any history of compromised WordPress accounts.
Technical view
WP-Members Membership Plugin through version 3.4.8 lacks proper authorization around the wpmem_field shortcode. An authenticated attacker with contributor privileges or above can access sensitive user information. CVSS 3.1 is 6.5, driven by network access, low complexity, low privileges, no user interaction, and high confidentiality impact.
Likely exposure
Exposure is limited to WordPress sites running WP-Members Membership Plugin versions up to and including 3.4.8, especially sites allowing contributor, author, editor, or administrator accounts that are untrusted, shared, or compromised.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. Exploitation requires authenticated WordPress access at contributor level or higher. The issue is still meaningful because exposed password hashes and account data can support broader compromise.
Researcher notes
The affected vector is authorization failure in shortcode handling, mapped to CWE-284. Public data identifies sensitive information exposure but does not provide complete exploitation telemetry. Avoid assuming unauthenticated exposure; the stated prerequisite is contributor access or higher.
Mitigation direction
- Update WP-Members Membership Plugin to a vendor-supported version beyond the affected range.
- Check vendor and WordPress plugin guidance for the specific fixed release.
- Restrict contributor-level and higher access to trusted users only.
- Remove unused, shared, or suspicious WordPress accounts.
- If exposure is suspected, reset affected user passwords and review account activity.
Validation and detection
- Inventory WordPress sites using WP-Members Membership Plugin.
- Confirm installed plugin versions are not 3.4.8 or older.
- List users with contributor, author, editor, or administrator roles.
- Review recent content changes by non-admin users for suspicious shortcode use.
- Check WordPress audit logs for unusual user-profile or content access patterns.
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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-6733 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
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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:H/I:N/A:N2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/46c61f38-553e-43b2-a666-b160db40e66d?source=cveCVE reference
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3015224%40wp-members%2Ftrunk&old=2920897%40wp-members%2Ftrunk&sfp_email=&sfph_mail=CVE reference
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.