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Back to active CVEs
Medium · CVSS 5.3CVE-2026-120331

Server-Side Request Forgery in extension "Mail" (mail)CVE-2026-120331

Answer in brief

CVE-2026-120331 records a Medium severity (CVSS 5.3) vulnerability in Server-Side Request Forgery in extension "Mail" (mail). The current sources do not mark it as known exploited. The current feed maps TYPO3/mediaessenz/mail (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 3, 2026Updated Nov 3, 2026Source checked Nov 3, 2026First seen by HOL Nov 3, 2026Material review Nov 3, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps TYPO3/mediaessenz/mail (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
TYPO3/mediaessenz/mailgeneric>=4.0.0 <4.2.0 || >=0 <3.12.54.2.0, 3.12.5

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for TYPO3/mediaessenz/mail.
  2. 2Review the reported fix. Update TYPO3/mediaessenz/mail to 4.2.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 3, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 3, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 3, 2026

Sources and claim methodology

  • Source referencetypo3.org
Upstream source description

Content of external URL mails, their stylesheets and images to embed is fetched by the server without validating the target host. Backend users with access to the mail module can make the server send requests to hosts in the internal network.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Open Redirection in extension "Mail" (mail)Same typo3/mediaessenz/mail package
  • Information Disclosure in extension "Mail" (mail)Same typo3/mediaessenz/mail package
  • Broken Access Control in extension "Mail" (mail)Same typo3/mediaessenz/mail package
  • Broken Access Control in extension "Mail" (mail)Same typo3/mediaessenz/mail package
  • Cross-Site Scripting in extension "Mail" (mail)Same typo3/mediaessenz/mail package
  • Unauthenticated SSRF with MNESTIX_BACKEND_API_KEY disclosure in Eclipse Mnestix Browser server actions for configured InfrastructuresAlso CWE-918

Record context

Vulnerability class
SSRF
EPSS
Not reported
CWE IDs
CWE-918
Source
CVE List V5
Source checked
Nov 3, 2026
References
1 linked source
Open source record