CVE-2021-24124 WP Shieldon 1.6.3 - Unauthenticated Cross-Site Scripting (XSS)
Unauthenticated attackers can inject malicious scripts via the CAPTCHA page in WP Shieldon, potentially leading to privilege escalation.
- 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-2021-24124?
CVE-2021-24124 is a medium-severity cross-site scripting vulnerability in Unknown WP Shieldon, published on 18 Mar 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
Unvalidated input and lack of output encoding in the WP Shieldon WordPress plugin, version 1.6.3 and below, leads to Unauthenticated Reflected Cross-Site Scripting (XSS) when the CAPTCHA page is shown could lead to privileged escalation.
Weakness: CWE-79
Which versions are affected by CVE-2021-24124?
It affects 1 product.
Products include Terryl Wp Shieldon.
How do I fix CVE-2021-24124?
No fix has been published for CVE-2021-24124 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-2021-24124 being exploited?
There is no known exploitation of CVE-2021-24124 in the wild and no public exploit code.
Sources
Also known as GHSA-pvrg-m768-r86c.