Security readout for executives and security teams
Plain-English summary
A WordPress plugin used for CRM memberships has a stored cross-site scripting issue in versions up to 1.6. An administrator-level user could save unsafe script content that later runs when another user views it. Business risk is moderate because abuse needs high privileges and user interaction, but successful execution can affect confidentiality, integrity, and availability at a limited level.
Executive priority
Handle during the next vulnerability maintenance cycle unless the plugin is exposed in a high-risk admin environment or admin accounts are weakly controlled. Prioritize faster if the plugin is business-critical and no fixed release is available.
Technical view
CVE-2023-27427 is an authenticated admin+ stored XSS in NTZApps CRM Memberships for WordPress, reported for versions <= 1.6. It is classified as CWE-79 with CVSS 3.1 score 5.9, vector AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L.
Likely exposure
Exposure is limited to WordPress sites running the NTZApps CRM Memberships plugin version 1.6 or earlier, especially where multiple administrators or delegated admin accounts can access plugin functionality.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. The CVSS vector indicates exploitation is network-reachable, low complexity, requires high privileges, and also requires user interaction.
Researcher notes
Key constraints are PR:H and UI:R. Do not treat this as unauthenticated XSS. The bundle does not identify the vulnerable parameter, patch version, public exploit, or active exploitation, so validation should focus on inventory, versioning, and vendor status.
Mitigation direction
- Inventory WordPress sites for the crm-memberships plugin and installed version.
- If version is 1.6 or older, check vendor and Patchstack guidance for remediation status.
- Restrict plugin administration to trusted accounts with MFA and least privilege.
- Review administrator accounts for compromise or unnecessary access.
- Consider disabling the plugin if no maintained fix is available.
Validation and detection
- Confirm whether CRM Memberships is installed on each WordPress instance.
- Record plugin version and compare against the <= 1.6 affected range.
- Review admin user list for unexpected or stale privileged accounts.
- Check web logs and WordPress audit logs for unusual plugin administration activity.
- Verify whether vendor or Patchstack lists a fixed 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-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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-2023-27427 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
- 5.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
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:H/UI:R/S:C/C:L/I:L/A:L1.73.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.9MediumVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
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.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.