vulnerability / NVI-00014191 / Revision 1
Appium: Reflected XSS / arbitrary JS in @appium/base-driver /test/guinea-pig* routes
GitHub lists this reviewed advisory for @appium/base-driver. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.
This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.
01 / Meaning
Why it matters
Published affected context helps an owner decide what evidence to gather. This report has not examined your application.
6.5 medium
GitHub source severity; exploitability and local consequence require separate evidence.
As of · GitHub Advisory Database
02 / Applicability
The affected context
Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.
@appium/base-driver
source listed<= 10.6.0
## Summary Appium's base-driver mounts the built-in `/test/guinea-pig`, `/test/guinea-pig-scrollable` and `/test/guinea-pig-app-banner` routes **unconditionally** on every server. The handler reflects the `throwError` query param, the `comments` POST field, and the `User-Agent` request header into the returned HTML via `compileLodashTemplate`, which interpolates `` as `String(expr)` with **no HTML/JS escaping**. This yields reflected XSS, and the `throwError` value is reflected **inside a `` block**, giving arbitrary JavaScript execution on the server's origin. No authentication, no session, no driver and no plugin are required, and the default bind address is `0.0.0.0`. ## Details ### Affected - `@appium/base-driver` **10.6.0** (with Appium server **3.5.0**); tested live. - Template engine helper: `@appium/base-driver` `lib/utils.ts` `compileLodashTemplate`. ### Location (file:line) - Routes mounted unconditionally: `base-driver/lib/express/server.ts:216-219` (`app.all('/test/guinea-pig', guineaPig)` etc.). - Tainting: `base-driver/lib/express/static.ts:35-61` (`guineaPigTemplate`) — `throwError = String(req.params.throwError ?? req.query?.throwError)`, `par
03 / Response
What to do next
- investigate
Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.
Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database
A fixed release is not deployment evidence.
Check current vendor support and compatibility. After making a change, verify the deployed build and relevant runtime conditions. Keep the evidence, owner and time. An updated lockfile alone does not prove what is running.
04 / Limits
What this report cannot establish
- Customer inventory, deployment, reachability and exploitation have not been inspected.
05 / Provenance
Sources you can inspect
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- GHSA-3wgp-x9p5-c7cc ↗
GitHub Advisory Database · vendor advisory
Observed . GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.
Public revision history
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- Revision 1 ·
First indexed by Null; source disclosure date is shown separately.