CVE-2023-26486
Vega Expression Language `scale` expression function Cross Site Scripting
Description
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.
How to fix CVE-2023-26486
To remediate CVE-2023-26486, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 5.23.0 or later
- —upgrade to 5.13.1 or later
Is CVE-2023-26486 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0
- from 0, < 5.23.0
- from 0, < 5.13.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |