CVE-2025-27793

Vega vulnerable to Cross-site Scripting via RegExp.prototype[@@replace]

MEDIUM
5.3
CVSS Score
Published: March 27, 2025 at 02:07 PM UTC
Updated: June 17, 2026 at 09:04 AM UTC
1 product affected across 1 vendorVega

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

Vega is a visualization grammar, a declarative format for creating, saving, and sharing interactive visualization designs. In Vega prior to version 5.32.0, corresponding to vega-functions prior to version 5.17.0, users running Vega/Vega-lite JSON definitions could run unexpected JavaScript code when drawing graphs, unless the library was used with the `vega-interpreter`. Vega version 5.32.0 and vega-functions version 5.17.0 fix the issue. As a workaround, use `vega` with expression interpreter.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 5.32.0
Affected range stops below 5.32.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMGitHub_M
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79CWE-87

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