CVE-2021-24544 Responsive WordPress Slider <= 2.2.0 - Subscriber+ Stored Cross-Site Scripting
Subscribers can inject scripts via slider options, leading to admin account takeover and privilege escalation in Responsive WordPress Slider.
- 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-2021-24544?
CVE-2021-24544 is a medium-severity cross-site scripting vulnerability in Unknown Responsive WordPress Slider, published on 25 Oct 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 Responsive WordPress Slider WordPress plugin through 2.2.0 does not sanitise and escape some of the Slider options, allowing Cross-Site Scripting payloads to be set in them. Furthermore, as by default any authenticated user is allowed to create Sliders (https://wordpress.org/support/topic/slider-can-be-changed-from-any-user-even-subscriber/, such settings can be changed in the plugin's settings), this would allow user with a role as low as subscriber to perform Cross-Site Scripting attacks against logged in admins viewing the slider list and could lead to privilege escalation by creating a rogue admin account for example.
Weakness: CWE-79
Which versions are affected by CVE-2021-24544?
It affects 1 product.
Products include Motopress Motopress-Slider-Lite.
How do I fix CVE-2021-24544?
No fix has been published for CVE-2021-24544 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-2021-24544 being exploited?
There is no known exploitation of CVE-2021-24544 in the wild and no public exploit code.
Sources
Also known as GHSA-mwxq-44mw-f88x.