CVE-2025-25304 – vega

Package

Manager: npm
Name: vega
Vulnerable Version: >=0 <5.26.0

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N/E:U/RL:O/RC:C

CVSS v4.0: 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

EPSS: 0.00184 pctl0.40424

Details

Vega allows Cross-site Scripting via the vlSelectionTuples function ### Summary The `vlSelectionTuples` function can be used to call JavaScript functions, leading to XSS. ### Details [`vlSelectionTuples`](https://github.com/vega/vega/blob/b45cf431cd6c0d0c0e1567f087f9b3b55bc236fa/packages/vega-selections/src/selectionTuples.js#L14) calls multiple functions that can be controlled by an attacker, including one call with an attacker-controlled argument. Example call: `vlSelectionTuples([{datum:<argument>}], {fields:[{getter:<function>}]})` This can be used to call `Function()` with arbitrary JavaScript and the resulting function can be called with `vlSelectionTuples` or using a type coercion to call `toString` or `valueOf`. ### PoC ``` {"$schema":"https://vega.github.io/schema/vega/v5.json","signals":[{"name":"a","init":"+{valueOf:vlSelectionTuples([{datum:'alert(1)'}],{fields:[{getter:[].at.constructor}]})[0].values[0]}"}]} ```

Metadata

Created: 2025-02-14T17:33:58Z
Modified: 2025-02-14T22:17:54Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/02/GHSA-mp7w-mhcv-673j/GHSA-mp7w-mhcv-673j.json
CWE IDs: ["CWE-79"]
Alternative ID: GHSA-mp7w-mhcv-673j
Finding: F008
Auto approve: 1