CVE-2021-24656 Simple Social Media Share Buttons < 3.2.4 - Authenticated Stored Cross-Site Scripting
High-privilege users can inject malicious scripts via Share Title settings, 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-2021-24656?
CVE-2021-24656 is a medium-severity cross-site scripting vulnerability in Unknown Simple Social Media Share Buttons – Social Sharing for Everyone, published on 11 Oct 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 Social Media Share Buttons WordPress plugin before 3.2.4 does not escape the Share Title settings before outputting it in the frontend pages or posts (depending on the settings used), 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-2021-24656?
It affects 1 product.
Products include Wpbrigade Simple Social Buttons.
How do I fix CVE-2021-24656?
No fix has been published for CVE-2021-24656 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-2021-24656 being exploited?
There is no known exploitation of CVE-2021-24656 in the wild and no public exploit code.
Other vulnerabilities in Unknown Simple Social Media Share Buttons – Social Sharing for Everyone
Sources
Also known as GHSA-jr4w-g4rp-m3m8.