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CVE-2025-66648

`vega-functions` vulnerable to Cross-site Scripting via `setdata` function

Published: Jan 5, 2026Updated: Feb 5, 2026 Sources: CVE List NVD GHSACWE-79
NVD MITRE
7.2CVSSHIGH
EPSS Score
0.2%
Top 92.0%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

vega-functions provides function implementations for the Vega expression language. Prior to version 6.1.1, for sites that allow users to supply untrusted user input, malicious use of an internal function (not part of the public API) could be used to run unintentional javascript (XSS). This issue is fixed in vega-functions `6.1.1`. There is no workaround besides upgrading. Using `vega.expressionInterpreter` as described in CSP safe mode does not prevent this issue.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-79

Affected Products

vegavega
Embedded
ICS / OT / IoT / industrial-network
vega-functionsnpmOSS Libraries
vega-functionsvega-functions project
Library
OSS Libraries / generic-library
vegacommercialDEICS / OT / IoTaka vega instruments
npmpackage-ecosystemOSS Libraries
vega-functions projectoss-projectOSS Librariesaka vega-functions

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/vega/vega/security/advisories/GHSA-m9rg-mr6g-75gm
github.com
https://nvd.nist.gov/vuln/detail/CVE-2025-66648
nvd.nist.gov
https://github.com/vega/vega
github.com

Timeline

Published
Jan 5, 2026
Last Updated
Feb 5, 2026

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