# CVE-2026-120328: Information Disclosure in extension "Mail" (mail)

Status: published. Published: 2026-11-03. Updated: 2026-11-03.

The click tracking middleware does not validate the authentication code of a recipient if the code is omitted. Unauthenticated attackers can retrieve personal data of newsletter recipients, which is inserted into links of sent mails.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- TYPO3 / Extension "Mail" (mediaessenz/mail): ≥ 4.0.0; < 4.2.0 (affected, semver); ≥ 0; < 3.12.5 (affected, semver). Source: CNA: TYPO3

## Severity and prioritization

- CVSS 4.0: 6.9 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N; source: CNA: TYPO3

- CVSS 4.0: 6.9 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X; source: NVD: f4fb688c-4412-4426-b4b8-421ecf27b14a

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-639

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://typo3.org/security/advisory/typo3-ext-sa-2026-037 (CNA: TYPO3; vendor-advisory)

- https://typo3.org/security/advisory/typo3-ext-sa-2026-037 (f4fb688c-4412-4426-b4b8-421ecf27b14a)

## Provenance

- CNA: TYPO3: https://www.cve.org/CVERecord?id=CVE-2026-120328; retrieved 2026-11-03; source updated 2026-11-03

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-120328; retrieved 2026-11-03; source updated 2026-11-03

Revision: f419372d89dd1a1c77ea1f4623c845d3f1e49c84d5297a47f9849e6df5f32943

Canonical: https://y2.dev/cve/CVE-2026-120328

## 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.