CVE-2026-57533

EUVD-2026-39423
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.
Basic XSS
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
rami.ioCNA
2.1 LOW
NETWORK
HIGH
LOW
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Base Score
CVSS 3.x
EPSS Score
Percentile: 22.35%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
pretixpretix
𝑥
< 2026.3.4
CNA
pretixpretix
2026.4.0 ≤
𝑥
< 2026.4.4
CNA
pretixpretix
2026.5.0 ≤
𝑥
< 2026.5.2
CNA
Common Weakness Enumeration
References
https://pretix.eu/about/en/blog/20260625-release-2026-5-2/