CVE-2021-24574 Simple Banner < 2.10.4 - Authenticated Stored XSS
Authenticated administrators can inject malicious scripts via unsanitized settings in the Simple Banner WordPress plugin, leading to stored XSS.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-24574?
CVE-2021-24574 is a medium-severity cross-site scripting vulnerability in Unknown Simple Banner, published on 23 Aug 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
The Simple Banner WordPress plugin before 2.10.4 does not sanitise and escape one of its settings, allowing high privilege users such as admin to use Cross-Site Scripting payload even when the unfiltered_html capability is disallowed.
Weakness: CWE-79
Which versions are affected by CVE-2021-24574?
It affects 1 product.
Products include Simple Banner Project Simple Banner.
How do I fix CVE-2021-24574?
No fix has been published for CVE-2021-24574 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-2021-24574 being exploited?
There is no known exploitation of CVE-2021-24574 in the wild and no public exploit code.
Other vulnerabilities in Unknown Simple Banner
Sources
Also known as GHSA-jx5c-5jv3-g74m.