CVE-2021-24812 BetterLinks < 1.2.6 - Admin+ Stored Cross-Site Scripting
An admin importing a malicious CSV can trigger stored XSS, allowing attackers to execute scripts in the admin interface.
- 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-2021-24812?
CVE-2021-24812 is a medium-severity cross-site scripting vulnerability in Unknown BetterLinks – Shorten, Track and Manage any URL, published on 23 Nov 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 BetterLinks WordPress plugin before 1.2.6 does not sanitise and escape some of imported link fields, which could lead to Stored Cross-Site Scripting issues when an admin import a malicious CSV.
Weakness: CWE-79
Which versions are affected by CVE-2021-24812?
It affects 1 product.
Products include Wpdeveloper Betterlinks.
How do I fix CVE-2021-24812?
No fix has been published for CVE-2021-24812 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-2021-24812 being exploited?
There is no known exploitation of CVE-2021-24812 in the wild and no public exploit code.
Other vulnerabilities in Unknown BetterLinks – Shorten, Track and Manage any URL
Sources
Also known as GHSA-4w3h-ggjg-2hvj.