Vega is a visualization grammar, a declarative format for creating, saving, and sharing interactive visualization designs.`lassoAppend' function accepts 3 arguments and internally invokes `push` function on the 1st argument specifying array consisting of 2nd and 3rd arguments as `push` call argument. The type of the 1st argument is supposed to be an array, but it's not enforced. This makes it possible to specify any object with a `push` function as the 1st argument, `push` function can be set to any function that can be access via `event.view` (no all such functions can be exploited due to invalid context or signature, but some can, e.g. `console.log`). The issue is that`lassoAppend` doesn't enforce proper types of its arguments. This issue opens various XSS vectors, but exact impact and severity depends on the environment (e.g. Core JS `setImmediate` polyfill basically allows `eval`-like functionality). This issue was patched in 5.23.0.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-03-03T23:47:28.486Z

Updated: 2024-08-02T11:53:52.908Z

Reserved: 2023-02-23T23:22:58.575Z

Link: CVE-2023-26487

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-03-04T00:15:15.563

Modified: 2024-11-21T07:51:37.203

Link: CVE-2023-26487

cve-icon Redhat

Severity : Moderate

Publid Date: 2023-05-03T00:00:00Z

Links: CVE-2023-26487 - Bugzilla