CVE-2021-24856 Shared Files < 1.6.61 - Admin+ Stored Cross-Site Scripting
High-privilege users can inject malicious scripts via Download Counter Text settings in the Shared Files WordPress plugin, potentially leading to code execution or account takeover.
- 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-2021-24856?
CVE-2021-24856 is a medium-severity cross-site scripting vulnerability in Unknown Shared Files – Easy Download Manager and File Sharing Plugin with Frontend File Upload, published on 17 Nov 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
The Shared Files WordPress plugin before 1.6.61 does not sanitise and escape the Download Counter Text settings, which could allow 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-2021-24856?
It affects 1 product.
Products include Tammersoft Shared Files.
How do I fix CVE-2021-24856?
No fix has been published for CVE-2021-24856 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-2021-24856 being exploited?
There is no known exploitation of CVE-2021-24856 in the wild and no public exploit code.
Other vulnerabilities in Unknown Shared Files – Easy Download Manager and File Sharing Plugin with Frontend File Upload
Sources
Also known as GHSA-533w-p83m-xgjp.