CVE-2021-24587 Splash Header < 1.20.8 - Authenticated Stored Cross-Site Scripting (XSS)
Authenticated attackers can inject malicious scripts into the admin dashboard via unsanitized settings in the Splash Header plugin.
- 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-2021-24587?
CVE-2021-24587 is a medium-severity cross-site scripting vulnerability in Unknown Splash Header, published on 20 Sep 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
The Splash Header WordPress plugin before 1.20.8 doesn't sanitise and escape some of its settings while outputting them in the admin dashboard, leading to an authenticated Stored Cross-Site Scripting issue.
Weakness: CWE-79
Which versions are affected by CVE-2021-24587?
It affects 1 product.
Products include Zeesweb Splash Header.
How do I fix CVE-2021-24587?
No fix has been published for CVE-2021-24587 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-2021-24587 being exploited?
There is no known exploitation of CVE-2021-24587 in the wild and no public exploit code.
Sources
Also known as GHSA-vm9v-hfwf-qw4q.