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CVE-2025-26619

Vega Cross-Site Scripting (XSS) via event filter when not using CSP mode `expressionInterpeter`

Published: Mar 27, 2025Updated: Apr 11, 2025 Sources: CVE List NVD GHSACWE-79
NVD MITRE
6.1CVSSMEDIUM
EPSS Score
0.3%
Top 78.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Vega is a visualization grammar, a declarative format for creating, saving, and sharing interactive visualization designs. In `vega` 5.30.0 and lower and in `vega-functions` 5.15.0 and lower , it was possible to call JavaScript functions from the Vega expression language that were not meant to be supported. The issue is patched in `vega` `5.31.0` and `vega-functions` `5.16.0`. Some workarounds are available. Run `vega` without `vega.expressionInterpreter`. This mode is not the default as it is slower. Alternatively, using the interpreter described in CSP safe mode (Content Security Policy) prevents arbitrary Javascript from running, so users of this mode are not affected by this vulnerability.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-79

Affected Products

vega-functionsvega-functions project
Library
OSS Libraries / generic-library
vegavega project
On-prem
OSS Libraries / generic-library
vegavega
Embedded
ICS / OT / IoT / industrial-network
veganpmOSS Libraries
vega-functionsnpmOSS Libraries
vega-functions projectoss-projectOSS Librariesaka vega-functions
vega projectoss-projectOSS Librariesaka vega
vegacommercialDEICS / OT / IoTaka vega instruments
npmpackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/vega/vega-lite/issues/9469
github.com
https://github.com/vega/vega/commit/8fc129a6f8a11e96449c4ac0f63de0e5bfc7254c
github.com
https://github.com/vega/vega/issues/3984
github.com
and 3 more references View all →

Timeline

Published
Mar 27, 2025
Last Updated
Apr 11, 2025

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