WordPress Simple Membership Plugin <= 4.3.8 is vulnerable to Unauth. Reflected Cross Site Scripting (XSS)
Priority LOW 32CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in smp7, wp.Insider Simple Membership allows Reflected XSS.This issue affects Simple Membership: from n/a through 4.3.8.
Why it matters now
EPSS 0.00459 40th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| wpinsider-1 | Simple Membership | up to 4.3.8 | — | No fix listed | CNA |
- Simple Membership Vendorwpinsider-1 Affected up to 4.3.8 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:simple-membership-plugin:simple_membership:*:*:*:*:*:wordpress:*:* | up to 4.3.8 | Vulnerable | wpinsider-1 |
- cpe:2.3:a:simple-membership-plugin:simple_membership:*:*:*:*:*:wordpress:*:* Versions up to 4.3.8 Vulnerable ·wpinsider-1
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-50376
- 2026-10-03 Alias added: GHSA-8cp3-ghqm-6565
References
More wpinsider-1 Simple Membership vulnerabilities
- TI-2022-04084 Simple Membership < 4.2.2 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
- TI-2023-22342 WordPress Simple Membership plugin <= 4.3.4 - Unauthenticated Membership Role Privilege Escalation vulnerability CVSS 3.1CRITICAL 9.8
- TI-2022-02140 Simple Membership < 4.1.3 - Unauthenticated Membership Privilege Escalation CVSS 3.1CRITICAL 9.8
- TI-2019-10675 The Simple Membership plugin before 3.8.5 for WordPress has CSRF affecting the Bulk Operation section. CVSS 3.0HIGH 8.8
- TI-2023-22341 WordPress Simple Membership plugin <= 4.3.4 - Authenticated Account Takeover vulnerability CVSS 3.1HIGH 8.8
- TI-2024-10273 Simple Membership <= 4.5.5 - Exposure of Private Personal Information to an Unauthorized Actor CVSS 3.1HIGH 7.5
Sources
- CVE-2023-50376 · CVE Program
- CVE-2023-50376 · NVD
- FIRST EPSS
- GHSA-8cp3-ghqm-6565 · GitHub Advisory Database · CC BY 4.0
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