CVE-2023-5743 Telephone Number Linker <= 1.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
Authenticated contributors can inject arbitrary scripts via shortcode attributes, leading to stored XSS execution for other users.
- 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-2023-5743?
CVE-2023-5743 is a medium-severity cross-site scripting vulnerability in stoatoffear Telephone Number Linker, published on 7 Nov 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Telephone Number Linker plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'telnumlink' shortcode in all versions up to, and including, 1.2 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-2023-5743?
It affects 1 product.
Products include Gravitydesign Telephone Number Linker.
How do I fix CVE-2023-5743?
No fix has been published for CVE-2023-5743 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-2023-5743 being exploited?
There is no known exploitation of CVE-2023-5743 in the wild and no public exploit code.
Sources
Also known as GHSA-98gw-chhm-xcc3.