CVE-2021-24214 OpenID Connect Generic Client 3.8.0-3.8.1 - Reflected Cross Site Scripting (XSS) via Login Error
Unauthenticated attackers can execute arbitrary scripts in victim browsers via reflected XSS in the OpenID Connect Generic Client login error message.
- 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
- None listed
What is CVE-2021-24214?
CVE-2021-24214 is a medium-severity cross-site scripting vulnerability in daggerhart OpenID Connect Generic Client, published on 5 May 2021. 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 OpenID Connect Generic Client WordPress plugin 3.8.0 and 3.8.1 did not sanitise the login error when output back in the login form, leading to a reflected Cross-Site Scripting issue. This issue does not require authentication and can be exploited with the default configuration.
Weakness: CWE-79
Which versions are affected by CVE-2021-24214?
It affects 1 product.
Products include Daggerhartlab Openid Connect Generic Client.
How do I fix CVE-2021-24214?
No fix has been published for CVE-2021-24214 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-2021-24214 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-24214 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-6gp2-g559-39jj.