CVE-2020-26296: vega_project vega Cross-site Scripting
Vulnerability summary
CVE-2020-26296 is a high (CVSS 8.7) Cross-site Scripting vulnerability in vega_project vega. EPSS estimates a 1.71% chance of exploitation in the next 30 days, higher than 77.1% of scored vulnerabilities.
Timeline
- 30-12-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · NpmEcosystem advisory · calculated8.7HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
- NVDNIST8.7HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
EPSS trend
Probability
1.71%
Chance of exploitation in the next 30 days
Percentile
77%
Versus all other CVEs
30-day change
+0.02 pp
From 1.69% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
3 vendors · 3 products
References
6 links- github.com/vega/vega/security/advisories/GHSA-r2qc-w64x-6j54X Refsource CONFIRMWEBThird Party Advisory
