XSS in Vega

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.

Recommendation

Update the vega package to the latest compatible version. Followings are version details:

• Affected version(s): < 5.17.3
• Patched version(s): 5.17.3

References

• GHSA-r2qc-w64x-6j54
• www.npmjs.com
• CVE-2020-26296
• CWE-79
• CAPEC-310
• OWASP 2021-A3
• OWASP 2021-A6

Related Issues

• Vega Cross-Site Scripting (XSS) via event filter when not using CSP mode expressionInterpeter (GHSA-rcw3-wmx7-cphr) - CVE-2025-26619
• Vega allows Cross-site Scripting via the vlSelectionTuples function - CVE-2025-25304
• Vega vulnerable to Cross-site Scripting via RegExp.prototype[@@replace] (GHSA-963h-3v39-3pqf) - CVE-2025-27793
• Vega has Cross-site Scripting vulnerability in `lassoAppend` function (GHSA-w5m3-xh75-mp55) - CVE-2023-26487

Tags:

npm

vega