CVE-2021-23495 Open Redirect
Attackers can redirect users to malicious sites via the return_url parameter in the Karma test runner, potentially facilitating phishing attacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-23495?
CVE-2021-23495 is a medium-severity vulnerability in karma, published on 25 Feb 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The package karma before 6.3.16 are vulnerable to Open Redirect due to missing validation of the return_url query parameter.
Weakness: CWE-601
Which versions are affected by CVE-2021-23495?
2 open source packages ship an affected version, including karma. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
karma npm | All versions | 6.3.16 |
karma npm | All versions | 6.3.16 |
Products include Karma Project Karma.
How do I fix CVE-2021-23495?
Upgrade karma to 6.3.16 or later.
Is CVE-2021-23495 being exploited?
There is no known exploitation of CVE-2021-23495 in the wild and no public exploit code.
Other vulnerabilities in karma
Sources
Also known as CLSA-2026-1774657354, CLSA-2026-1791028060, GHSA-rc3x-jf5g-xvc5.