Vega `scale` expression function cross site scripting
CVE-2023-26486

6.5MEDIUM

Key Information:

Vendor

Vega

Status
Vega
Vendor
CVE Published:
4 March 2023

What is CVE-2023-26486?

Vega is a visualization grammar, a declarative format for creating, saving, and sharing interactive visualization designs. The Vega scale expression function has the ability to call arbitrary functions with a single controlled argument. The scale expression function passes a user supplied argument group to getScale, which is then used as if it were an internal context. The context.scales[name].value is accessed from group and called as a function back in scale. This can be exploited to escape the Vega expression sandbox in order to execute arbitrary JavaScript. This issue has been fixed in version 5.13.1.

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Affected Version(s)

vega < 5.13.1

References

https://github.com/vega/vega/security/advisories/GHSA-4vq...
x_refsource_CONFIRM
https://github.com/vega/vega/releases/tag/v5.23.0
x_refsource_MISC
https://github.dev/vega/vega/blob/72b9b3bbf912212e7879b6a...
x_refsource_MISC

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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