CVE-2021-24980 Gwolle Guestbook < 4.2.0 - Reflected Cross-Site Scripting
Attackers can inject malicious scripts via the user email parameter in the Gwolle Guestbook WordPress plugin admin page, potentially compromising administrator accounts.
- 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-2021-24980?
CVE-2021-24980 is a medium-severity cross-site scripting vulnerability in Unknown Gwolle Guestbook, published on 27 Dec 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 Gwolle Guestbook WordPress plugin before 4.2.0 does not sanitise and escape the gwolle_gb_user_email parameter before outputting it back in an attribute, leading to a Reflected Cross-Site Scripting issue in an admin page
Weakness: CWE-79
Which versions are affected by CVE-2021-24980?
It affects 1 product.
Products include Gwolle Guestbook Project Gwolle Guestbook.
How do I fix CVE-2021-24980?
No fix has been published for CVE-2021-24980 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-2021-24980 being exploited?
There is no known exploitation of CVE-2021-24980 in the wild and no public exploit code.
Other vulnerabilities in Unknown Gwolle Guestbook
Sources
Also known as GHSA-jh4v-x3g4-f2hj.