CVE-2021-24508 Smash Balloon Social Post Feed < 2.19.2 - Unauthenticated Stored XSS
Unauthenticated attackers can inject malicious scripts via the feedID parameter, which execute in the context of logged-in administrators.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-24508?
CVE-2021-24508 is a medium-severity cross-site scripting vulnerability in Unknown Smash Balloon Social Post Feed, published on 13 Sep 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The Smash Balloon Social Post Feed WordPress plugin before 2.19.2 does not sanitise or escape the feedID POST parameter in its feed_locator AJAX action (available to both authenticated and unauthenticated users) before outputting a truncated version of it in the admin dashboard, leading to an unauthenticated Stored Cross-Site Scripting issue which will be executed in the context of a logged in administrator.
Weakness: CWE-79
Which versions are affected by CVE-2021-24508?
It affects 1 product.
Products include Smashballoon Smash Balloon Social Post Feed.
How do I fix CVE-2021-24508?
No fix has been published for CVE-2021-24508 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-2021-24508 being exploited?
There is no known exploitation of CVE-2021-24508 in the wild and no public exploit code.
Other vulnerabilities in Unknown Smash Balloon Social Post Feed
- CVE-2022-4477 Smash Balloon Social Post Feed < 4.1.6 - Contributor+ Stored XSS
- CVE-2021-25065 Smash Balloon Social Post Feed < 4.1.1 - Authenticated Reflected Cross-Site Scripting (XSS)
- CVE-2021-24918 Smash Balloon Social Post Feed < 4.0.1 - Subscriber+ Arbitrary Plugin Settings Update to Stored XSS
Sources
Also known as GHSA-h2xq-fv4r-5784.