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Vulnerable Software

Vulnerability Details CVE-2026-41426

pretalx is a conference planning tool. Prior to 2026.1.0, an unauthenticated attacker can send arbitrary HTML-rendered emails from a pretalx instance's configured sender address by embedding malformed HTML or markdown link syntax in a user-controlled template placeholder such as the account display name. The most direct vector is the password-reset flow: the attacker registers an account with a malicious name, enters the victim's email address, and triggers a password reset. The resulting email is delivered from the event's legitimate sender address and passes SPF/DKIM/DMARC validation, making it a ready-made phishing vector. This vulnerability is fixed in 2026.1.0.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 7.9%
CVSS Severity
CVSS v3 Score 6.1
Products affected by CVE-2026-41426
  • Pretalx » Pretalx » Version: 0.1.0
    cpe:2.3:a:pretalx:pretalx:0.1.0
  • Pretalx » Pretalx » Version: 0.2.0
    cpe:2.3:a:pretalx:pretalx:0.2.0
  • Pretalx » Pretalx » Version: 0.2.1
    cpe:2.3:a:pretalx:pretalx:0.2.1
  • Pretalx » Pretalx » Version: 0.2.2
    cpe:2.3:a:pretalx:pretalx:0.2.2
  • Pretalx » Pretalx » Version: 0.3.0
    cpe:2.3:a:pretalx:pretalx:0.3.0
  • Pretalx » Pretalx » Version: 0.3.1
    cpe:2.3:a:pretalx:pretalx:0.3.1
  • Pretalx » Pretalx » Version: 0.4.0
    cpe:2.3:a:pretalx:pretalx:0.4.0
  • Pretalx » Pretalx » Version: 0.4.1
    cpe:2.3:a:pretalx:pretalx:0.4.1
  • Pretalx » Pretalx » Version: 0.5.0
    cpe:2.3:a:pretalx:pretalx:0.5.0
  • Pretalx » Pretalx » Version: 0.6.0
    cpe:2.3:a:pretalx:pretalx:0.6.0
  • Pretalx » Pretalx » Version: 0.6.1
    cpe:2.3:a:pretalx:pretalx:0.6.1
  • Pretalx » Pretalx » Version: 0.7.0
    cpe:2.3:a:pretalx:pretalx:0.7.0
  • Pretalx » Pretalx » Version: 0.7.1
    cpe:2.3:a:pretalx:pretalx:0.7.1
  • Pretalx » Pretalx » Version: 0.8.0
    cpe:2.3:a:pretalx:pretalx:0.8.0
  • Pretalx » Pretalx » Version: 0.9.0
    cpe:2.3:a:pretalx:pretalx:0.9.0
  • Pretalx » Pretalx » Version: 1.0.0
    cpe:2.3:a:pretalx:pretalx:1.0.0
  • Pretalx » Pretalx » Version: 1.0.1
    cpe:2.3:a:pretalx:pretalx:1.0.1
  • Pretalx » Pretalx » Version: 1.0.2
    cpe:2.3:a:pretalx:pretalx:1.0.2
  • Pretalx » Pretalx » Version: 1.0.3
    cpe:2.3:a:pretalx:pretalx:1.0.3
  • Pretalx » Pretalx » Version: 1.0.4
    cpe:2.3:a:pretalx:pretalx:1.0.4
  • Pretalx » Pretalx » Version: 1.1.0
    cpe:2.3:a:pretalx:pretalx:1.1.0
  • Pretalx » Pretalx » Version: 1.1.1
    cpe:2.3:a:pretalx:pretalx:1.1.1
  • Pretalx » Pretalx » Version: 1.1.2
    cpe:2.3:a:pretalx:pretalx:1.1.2
  • Pretalx » Pretalx » Version: 2.0.0
    cpe:2.3:a:pretalx:pretalx:2.0.0
  • Pretalx » Pretalx » Version: 2.1.0
    cpe:2.3:a:pretalx:pretalx:2.1.0
  • Pretalx » Pretalx » Version: 2.1.1
    cpe:2.3:a:pretalx:pretalx:2.1.1
  • Pretalx » Pretalx » Version: 2.2.0
    cpe:2.3:a:pretalx:pretalx:2.2.0
  • Pretalx » Pretalx » Version: 2.3.0
    cpe:2.3:a:pretalx:pretalx:2.3.0
  • Pretalx » Pretalx » Version: 2.3.1
    cpe:2.3:a:pretalx:pretalx:2.3.1
  • Pretalx » Pretalx » Version: 2.3.2
    cpe:2.3:a:pretalx:pretalx:2.3.2
  • Pretalx » Pretalx » Version: 2023.1.0
    cpe:2.3:a:pretalx:pretalx:2023.1.0
  • Pretalx » Pretalx » Version: 2023.1.1
    cpe:2.3:a:pretalx:pretalx:2023.1.1
  • Pretalx » Pretalx » Version: 2023.1.2
    cpe:2.3:a:pretalx:pretalx:2023.1.2
  • Pretalx » Pretalx » Version: 2023.1.3
    cpe:2.3:a:pretalx:pretalx:2023.1.3
  • Pretalx » Pretalx » Version: 2024.1.0
    cpe:2.3:a:pretalx:pretalx:2024.1.0
  • Pretalx » Pretalx » Version: 2024.2.0
    cpe:2.3:a:pretalx:pretalx:2024.2.0
  • Pretalx » Pretalx » Version: 2024.2.1
    cpe:2.3:a:pretalx:pretalx:2024.2.1
  • Pretalx » Pretalx » Version: 2024.3.0
    cpe:2.3:a:pretalx:pretalx:2024.3.0
  • Pretalx » Pretalx » Version: 2024.3.1
    cpe:2.3:a:pretalx:pretalx:2024.3.1
  • Pretalx » Pretalx » Version: 2025.1.0
    cpe:2.3:a:pretalx:pretalx:2025.1.0
  • Pretalx » Pretalx » Version: 2025.2.0
    cpe:2.3:a:pretalx:pretalx:2025.2.0
  • Pretalx » Pretalx » Version: 2025.2.1
    cpe:2.3:a:pretalx:pretalx:2025.2.1
  • Pretalx » Pretalx » Version: 2025.2.2
    cpe:2.3:a:pretalx:pretalx:2025.2.2


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