# CVE-2026-110525: MCB Stats <= 1.0.0 - Unauthenticated Stored XSS via User-Agent

Status: published. Published: 2026-11-06. Updated: 2026-11-06.

The MCB  WordPress plugin through 1.0.0 does not sanitise or escape request header values before storing them and later rendering them in the administrator statistics grid, allowing unauthenticated attackers to store malicious JavaScript that executes in an administrator's browser session when the statistics page is viewed.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Unknown / MCB: ≥ 0; ≤ 1.0.0 (affected, semver). Source: CNA: WPScan

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-79

## Exploit evidence

- exploit: https://wpscan.com/vulnerability/4be75329-7348-4e4a-a541-6c53256d92eb/ (CNA: WPScan)

## References

- https://wpscan.com/vulnerability/4be75329-7348-4e4a-a541-6c53256d92eb/ (CNA: WPScan; exploit, vdb-entry, technical-description)

## Provenance

- CNA: WPScan: https://www.cve.org/CVERecord?id=CVE-2026-110525; retrieved 2026-11-06; source updated 2026-11-06

Revision: 776eb247dbcfb42812d1f62af2df9354bcfb996b1659e077376760bf28bd1faa

Canonical: https://y2.dev/cve/CVE-2026-110525

## 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.