CVE-2022-4544 MashShare < 3.8.7 - Contributor+ Stored XSS
Contributors can inject malicious scripts via shortcode attributes, potentially compromising admin accounts in MashShare.
- 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-2022-4544?
CVE-2022-4544 is a medium-severity cross-site scripting vulnerability in Unknown Social Media Share Buttons | MashShare, published on 16 Jan 2023. 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 MashShare WordPress plugin before 3.8.7 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.
Which versions are affected by CVE-2022-4544?
It affects 1 product.
Products include Wpchill Mashshare.
How do I fix CVE-2022-4544?
No fix has been published for CVE-2022-4544 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-2022-4544 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4544 exists.
Sources
Also known as GHSA-c96g-3xq2-pgqq.