CVE-2020-26296highCWE-79

CVE-2020-26296: high-severity vulnerability in vega

XSS in Vega

Published · Updated

Follow this CVE+ Monitor vega+ Monitor vega

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.7epss 1.7%
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
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Affected products
vega · vega
Related CVEs — vega

In the same product, most dangerous first.

CVE-2023-26487MEDIUMVega has cross-site scripting vulnerability in `lassoAppend` functionEPSS 0.8%CVE-2023-26486MEDIUMVega `scale` expression function cross site scriptingEPSS 0.8%CVE-2025-25304MEDIUMVega allows Cross-site Scripting via the vlSelectionTuples functionEPSS 0.7%CVE-2025-27793MEDIUMVega vulnerable to Cross-site Scripting via RegExp.prototype[@@replace]EPSS 0.5%CVE-2025-65110HIGHVega Cross-Site Scripting (XSS) via expression abusing vlSelectionTuples function array map calls in environments with satisfactory function gadgets in the global scopeEPSS 0.5%CVE-2025-59840HIGHVega Cross-Site Scripting (XSS) via expressions abusing toString calls in environments using the VEGA_DEBUG global variableEPSS 0.4%