# CVE-2026-123657: ProfilePress < 4.17.6 - Unauthenticated Inactive Membership Plan Enrollment via Negative Plan ID

Status: published. Published: 2026-11-11. Updated: 2026-11-11.

The ProfilePress  WordPress plugin before 4.17.6 does not reject negative membership plan identifiers before checking whether a plan is active, allowing unauthenticated visitors to sign up for membership plans an administrator has deactivated and receive the role attached to them.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Unknown / ProfilePress: ≥ 0; < 4.17.6 (affected, semver). Source: CNA: WPScan

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-862

## Exploit evidence

- exploit: https://wpscan.com/vulnerability/9ddc7296-26be-46ca-9752-d48c88754f55/ (CNA: WPScan)

## References

- https://wpscan.com/vulnerability/9ddc7296-26be-46ca-9752-d48c88754f55/ (CNA: WPScan; exploit, vdb-entry, technical-description)

## Provenance

- CNA: WPScan: https://www.cve.org/CVERecord?id=CVE-2026-123657; retrieved 2026-11-11; source updated 2026-11-11

Revision: 225e10493a950176bf2cfe9cf0ed08151b2b5b33958ff0375dabcce42a538f8b

Canonical: https://y2.dev/cve/CVE-2026-123657

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.