CVE-2025-25304Public exploitNetwork attack vector

Cross-site scripting via attacker-controlled selection getter

Published Feb 14, 2025 · Updated Feb 14, 2025

Cross-site scripting in Vega before 5.26.0 allows remote attackers to execute JavaScript through a crafted visualization specification. The vlSelectionTuples function invokes an attacker-supplied fields[].getter with attacker-controlled datum data, permitting Function() construction and invocation through valueOf or toString coercion. Exposure requires an application to process untrusted Vega specifications; successful exploitation runs script in the application's browser origin.

CVSS severity6.9
Medium
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Vega before 5.26.0 allows remote attackers to execute JavaScript through a crafted visualization specification. The vlSelectionTuples function invokes an attacker-supplied fields[].getter with attacker-controlled datum data, permitting Function() construction and invocation through valueOf or toString coercion. Exposure requires an application to process untrusted Vega specifications; successful exploitation runs script in the application's browser origin.

The record

CVE
CVE-2025-25304
Published
Feb 14, 2025
Updated
Feb 14, 2025
Vendor
Vega
Product
Vega
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 14, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 5.26.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Vega · Vegaversion=< 5.26.0

Published CVSS scores

6.9GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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