Zipline before 4.5.1 contains a stored cross-site scripting vulnerability in the HighlightCode component that renders
Source GCVE Database
Not known to be exploited · CVSS 9.3 Critical : upgrade to 4.5.1 as a priority.
Data as of 13 Nov 2026, 13:54 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 9.3 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 8.7 |
- Patch
- Available – fixed in 4.5.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 13 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Upgrade zipline to 4.5.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| dicedzipline | Affected
| Fixed in
|
AI-suggested
A fix is available in Zipline version 4.5.1 and later. Users should upgrade to version 4.5.1 or newer to remediate this vulnerability. There is no indication that any other mitigation or temporary workaround is recommended or required.
Description
Zipline versions before 4.5.1 have a stored cross-site scripting (XSS) vulnerability in the HighlightCode component. This flaw allows authenticated users to upload text files with malicious HTML/JavaScript that execute in other users' browsers when the file content is rendered unescaped. The vulnerability enables attackers to perform actions such as changing account details on behalf of victims.