CVE-2021-24592 Sitewide Notice WP < 2.3 - Authenticated Stored XSS
High-privilege users can inject malicious scripts via unsanitized settings in the Sitewide Notice WP plugin, leading to stored XSS attacks on frontend pages.
- 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-2021-24592?
CVE-2021-24592 is a medium-severity cross-site scripting vulnerability in Unknown Sitewide Notice WP, published on 30 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 Sitewide Notice WP WordPress plugin before 2.3 does not sanitise some of its settings before outputting them in frontend pages, allowing high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed
Weakness: CWE-79
Which versions are affected by CVE-2021-24592?
It affects 1 product.
Products include Yoohooplugins Sitewide Notice.
How do I fix CVE-2021-24592?
No fix has been published for CVE-2021-24592 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-2021-24592 being exploited?
There is no known exploitation of CVE-2021-24592 in the wild and no public exploit code.
Sources
Also known as GHSA-w8mm-7prp-fr25.