CVE-2021-24486 Simple Social Media Share Buttons < 3.2.3 - Contributor+ Stored XSS
Contributors can inject malicious scripts via shortcode parameters, leading to stored XSS attacks against site visitors.
- 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-2021-24486?
CVE-2021-24486 is a medium-severity cross-site scripting vulnerability in Unknown Simple Social Media Share Buttons – Social Sharing for Everyone, published on 23 Aug 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 Simple Social Media Share Buttons – Social Sharing for Everyone WordPress plugin before 3.2.3 did not escape the align and like_button_size parameters of its SSB shortcode, which could allow users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks.
Weakness: CWE-79
Which versions are affected by CVE-2021-24486?
It affects 1 product.
Products include Wpbrigade Simple Social Media Share Buttons.
How do I fix CVE-2021-24486?
No fix has been published for CVE-2021-24486 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-2021-24486 being exploited?
There is no known exploitation of CVE-2021-24486 in the wild and no public exploit code.
Sources
Also known as GHSA-5423-6j4f-m963.