CVE-2026-126945

EUVD-2026-125120
Zipline before 4.5.1 contains a stored cross-site scripting vulnerability in the HighlightCode component that renders unescaped file content before highlight.js finishes loading. Authenticated attackers can upload text files containing HTML/JavaScript payloads that execute in viewers' browsers, enabling API calls such as account changes on the victim's behalf.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.7 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 30.95%
Common Weakness Enumeration
References
https://github.com/diced/zipline/security/advisories/GHSA-m649-gvwx-j6qv
https://www.vulncheck.com/advisories/zipline-before-4.5.1-stored-xss-via-highlightcode-component