CVE-2026-126945diced zipline Cross-site Scripting (XSS)
NVD
Vulnerability Summary
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.
CVSS v4.0 Base Metrics — Score 9.3 (CRITICAL)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:NAttack VectorNetwork
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredLow
User InteractionPassive
Confidentiality (Vulnerable System)High
Integrity (Vulnerable System)High
Availability (Vulnerable System)None
Confidentiality (Subsequent System)High
Integrity (Subsequent System)High
Availability (Subsequent System)None
Show CVSS v3.x metrics (score 8.7)
CVSS v3.1 Base Metrics — Score 8.7 (HIGH)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:NAttack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionRequired
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
Affected & Patched Versions
- diced zipline < 4.5.1
- diced zipline 4.5.1
What to do
Plan remediation soon. No exploitation is confirmed yet, but the severity is critical.
- Check whether you run diced zipline and which version.
- Update to a patched version listed above, then confirm the new version.
Timeline
- Nov 13, 2026Published
- Nov 13, 2026Record last modified
Score, severity and exploitation changes are tracked from the day Watchtower started logging them.
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Data last checked: Nov 13, 2026 16:14 GMT+0000