Vulnerability · Published Dec 30, 2020 · Assigned by GitHub_M

CVE-2020-26296XSS in Vega

High 8.7

In plain English

A high-severity cross-site scripting in vega from vega. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 77% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.7High

Exploit odds (30 days)1.7%top 22.5% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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 & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	vega	5.17.3	GHSA-r2qc-w64x-6j54

Affected products (as reported)

Vendor	Product	Versions
vega	vega	< 5.17.3

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

References

https://github.com/vega/vega/security/advisories/GHSA-r2qc-w64x-6j54 x_refsource_CONFIRM
https://github.com/vega/vega/issues/3018 x_refsource_MISC
https://github.com/vega/vega/pull/3019 x_refsource_MISC
https://github.com/vega/vega/releases/tag/v5.17.3 x_refsource_MISC
https://www.npmjs.com/package/vega x_refsource_MISC