# CVE-2026-120330: Broken Access Control in extension "Mail" (mail)

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

Backend actions and ajax routes of the mail module do not check whether the backend user has access to the page of the requested mail or recipient group. Backend users with access to the mail module can view, change, send and export mails and recipient groups outside their web mounts, including the personal data of recipients.

## 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: 7.1 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N; source: CNA: TYPO3

- CVSS 4.0: 7.1 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/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-862

## 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-2026-120330; retrieved 2026-11-03; source updated 2026-11-03

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-120330; retrieved 2026-11-03; source updated 2026-11-03

Revision: 117af034a39f785c60953ac60fa534d174a7f873292a0301772b32bbee0b5254

Canonical: https://y2.dev/cve/CVE-2026-120330

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