CVE-2023-4963 WS Facebook Like Box Widget <= 5.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
Authenticated attackers can inject arbitrary scripts via shortcode, leading to code execution when users view the page.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-4963?
CVE-2023-4963 is a medium-severity cross-site scripting vulnerability in webshouter WS Facebook Like Box Widget, published on 15 Sep 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The WS Facebook Like Box Widget plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'ws-facebook-likebox' shortcode in versions up to, and including, 5.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Weakness: CWE-79
Which versions are affected by CVE-2023-4963?
It affects 1 product.
Products include Webshouters Ws Facebook Like Box Widget.
How do I fix CVE-2023-4963?
No fix has been published for CVE-2023-4963 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-2023-4963 being exploited?
There is no known exploitation of CVE-2023-4963 in the wild and no public exploit code.
Sources
Also known as GHSA-w525-28xq-6wrj.