Vulnerability · Published Mar 3, 2023 · Assigned by GitHub_M
CVE-2023-26487Vega has cross-site scripting vulnerability in `lassoAppend` function
Medium 6.5
In plain English
A medium-severity cross-site scripting in vega from vega. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Vega is a visualization grammar, a declarative format for creating, saving, and sharing interactive visualization designs.`lassoAppend' function accepts 3 arguments and internally invokes `push` function on the 1st argument specifying array consisting of 2nd and 3rd arguments as `push` call argument. The type of the 1st argument is supposed to be an array, but it's not enforced. This makes it possible to specify any object with a `push` function as the 1st argument, `push` function can be set to any function that can be access via `event.view` (no all such functions can be exploited due to invalid context or signature, but some can, e.g. `console.log`). The issue is that`lassoAppend` doesn't enforce proper types of its arguments. This issue opens various XSS vectors, but exact impact and severity depends on the environment (e.g. Core JS `setImmediate` polyfill basically allows `eval`-like functionality). This issue was patched in 5.23.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | vega.js | no fix listed | DEBIAN-CVE-2023-26487 |
| Debian:13 | vega.js | 5.25.0+ds+~cs5.3.0-1 | DEBIAN-CVE-2023-26487 |
| Debian:14 | vega.js | 5.25.0+ds+~cs5.3.0-1 | DEBIAN-CVE-2023-26487 |
| npm | vega | 5.23.0 | GHSA-w5m3-xh75-mp55 |
| npm | vega-functions | 5.13.1 | GHSA-w5m3-xh75-mp55 |
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
References
- https://github.com/vega/vega/security/advisories/GHSA-w5m3-xh75-mp55 x_refsource_CONFIRM
- https://github.com/vega/vega/commit/01adb034f24727d3bb321bbbb6696a7f4cd91689 x_refsource_MISC
- https://github.com/vega/vega/releases/tag/v5.23.0 x_refsource_MISC