Improper Encoding or Escaping of Output Affecting pretalx package, versions [,2026.1.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PYTHON-PRETALX-16432010
- published6 May 2026
- disclosed18 Apr 2026
- creditmarkfijneman
Introduced: 18 Apr 2026
NewCVE-2026-41426 (opens in a new tab)How to fix?
Upgrade pretalx to version 2026.1.0 or higher.
Overview
pretalx is a Conference organisation: CfPs, scheduling, much more
Affected versions of this package are vulnerable to Improper Encoding or Escaping of Output via unescaped user-controlled placeholders in mail templates. An attacker can inject arbitrary HTML content into outgoing emails by embedding malicious HTML or markdown link syntax in fields such as the account display name. This allows the attacker to send emails that appear to originate from a legitimate sender address, potentially enabling phishing attacks against recipients.