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1&1

Vulnerability disclosure program on security.txt 1und1.de

Accepting reports Full safe harbor security.txt expired
Go to program Website
Top reward
No cash rewards
Top severity paid
Not published
Assets in scope
1
Public CVEs
1
Last change
No changes yet

At a glance

What to know before you start testing.

No cash rewards
A disclosure program: you report for credit, not money.
Report by email
[email protected]
Full safe harbor
Good-faith research is authorised; no legal action.
Replies within 1 day
As the policy promises.

Rewards

What the company's own policy page says it pays.

This program does not pay cash rewards.

Response
Within 1 days Wir antworten normalerweise innerhalb eines Werktages.
Safe harbor
Full 1&1 wird keine Strafverfolgung von Personen anstreben, die uns in guter Absicht und in Übereinstimmung mit diesem Dokument Sicherheitslücken in einem 1&1 Dienst innerhalb des Geltungsbereichs melden.

Summarised with AI from the company's policy, read 12 Nov 2026, and checked word for word against it. Read the original

Scope

1 asset you may test, 2 excluded.

Domains 1

  • 1und1.de
Out of scope (2)
  • Denial-of-Service-Angriffe (d.h. Stören unserer Services mit einem hohen Anforderungsvolumen)
  • TLS-Konfigurations-Spezifikationen (z. B. keine Unterstützung für TLSv1.3, eine bestimmte Cipher Suite-Konfiguration usw.)

Rules

What the policy asks of you, and the bug types it won't reward, quoted from 1&1's policy.

While testing

  • Bitte senden Sie uns keine vertraulichen Informationen wie Ihr Passwort oder andere personenbezogene Daten!
  • Bitte beschränken Sie sich jedoch auf höchstens einmal alle 14 Tage.

Not accepted

  • Denial-of-Service-Angriffe
  • TLS-Konfigurations-Spezifikationen
  • Berichte, die darauf hinweisen, dass unsere Dienste nicht vollständig mit "Best Practices" übereinstimmen

Summarised with AI from the company's policy, read 12 Nov 2026, and checked word for word against it. Read the original

Changes

Tracked since 11 Nov 2026. Last checked 2 hours ago.

No changes yet. When the rewards or scope move, you will see it here and in the RSS feed.

Public CVEs

Published vulnerabilities in this vendor's products, from the NVD.

Search NVD
CVESeverityPublished
CVE-2014-5884 Medium 5.4 12 Sep 2014