CVE-2026-57533 Cross-site scripting in pretix
Attackers can inject malicious HTML into pretix redirection pages, enabling phishing attacks despite Content-Security-Policy restrictions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-57533?
CVE-2026-57533 is a low-severity cross-site scripting vulnerability in pretix, published on 25 Jun 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Malicious HTML content could be injected into the page pretix shows when redirection to an untrusted page occurs. Since this page has a Content-Security-Policy, this can mainly be used for phishing purposes.
Weakness: CWE-80
Which versions are affected by CVE-2026-57533?
How do I fix CVE-2026-57533?
No fix has been published for CVE-2026-57533 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-57533 being exploited?
There is no known exploitation of CVE-2026-57533 in the wild and no public exploit code.
Sources
Also known as GHSA-f658-prxw-vx8p.