CVE-2022-0121 Cross-site Scripting in hoppscotch/hoppscotch
An attacker can execute arbitrary scripts in the Hoppscotch web application, potentially stealing user data or session tokens.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2022-0121?
CVE-2022-0121 is a high-severity cross-site scripting vulnerability in hoppscotch/hoppscotch, published on 6 Jan 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in hoppscotch hoppscotch/hoppscotch.This issue affects hoppscotch/hoppscotch before 2.1.1.
Weakness: CWE-79
Which versions are affected by CVE-2022-0121?
It affects 1 product.
Products include Hoppscotch Hoppscotch.
How do I fix CVE-2022-0121?
No fix has been published for CVE-2022-0121 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2022-0121 being exploited?
There is no known exploitation of CVE-2022-0121 in the wild and no public exploit code.
Other vulnerabilities in hoppscotch/hoppscotch
- CVE-2026-50160 Mass Assignment via Onboarding Endpoint Allows Unauthenticated JWT_SECRET Overwrite
- CVE-2026-28215 hoppscotch Vulnerable to Unauthenticated Onboarding Config Takeover
- CVE-2026-34931 hoppscotch: Improper loopback redirect_uri validation in device-login flow
- CVE-2026-34932 hoppscotch: Stored XSS via mock server responses on backend origin
- CVE-2026-28216 hoppscotch has IDOR in updateUserEnvironment / deleteUserEnvironment
Sources
Also known as GHSA-4rhc-g7g9-q5w5.