CVE-2021-24918 Smash Balloon Social Post Feed < 4.0.1 - Subscriber+ Arbitrary Plugin Settings Update to Stored XSS
Logged-in users can inject malicious JavaScript into plugin settings, leading to stored XSS attacks on site posts and pages.
- 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-2021-24918?
CVE-2021-24918 is a medium-severity cross-site scripting vulnerability in Unknown Smash Balloon Social Post Feed, published on 29 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 Smash Balloon Social Post Feed WordPress plugin before 4.0.1 did not have any privilege or nonce validation before saving the plugin's setting. As a result, any logged-in user on a vulnerable site could update the settings and store rogue JavaScript on each of its posts and pages.
Weakness: CWE-79
Which versions are affected by CVE-2021-24918?
It affects 1 product.
Products include Smashballoon Smash Balloon Social Post Feed.
How do I fix CVE-2021-24918?
No fix has been published for CVE-2021-24918 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-2021-24918 being exploited?
There is no known exploitation of CVE-2021-24918 in the wild and no public exploit code.
Other vulnerabilities in Unknown Smash Balloon Social Post Feed
Sources
Also known as GHSA-j9qp-w82r-g5cf.