CVE-2020-26296

HIGH8.7EPSS 0.41%

XSS in Vega

Published: 12/30/2020Modified: 3/13/2026

Description

Vega is a visualization grammar, a declarative format for creating, saving, and sharing interactive visualization designs. Vega in an npm package. In Vega before version 5.17.3 there is an XSS vulnerability in Vega expressions. Through a specially crafted Vega expression, an attacker could execute arbitrary javascript on a victim's machine. This is fixed in version 5.17.3

Affected packages (1)

npm/vegafrom 0, < 5.17.3

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	HIGH8.7	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

References (6)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2020-26296
WEBhttps://github.com/vega/vega/issues/3018
WEBhttps://github.com/vega/vega/pull/3019
WEBhttps://github.com/vega/vega/releases/tag/v5.17.3
WEBhttps://github.com/vega/vega/security/advisories/GHSA-r2qc-w64x-6j54
WEBhttps://www.npmjs.com/package/vega