CVE-2023-4599 Email Encoder <= 2.1.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
Authenticated contributors 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-2023-4599?
CVE-2023-4599 is a medium-severity cross-site scripting vulnerability in onlineoptimisation Email Encoder – Protect Email Addresses and Phone Numbers, published on 30 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Email Encoder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'eeb_mailto' shortcode in versions up to, and including, 2.1.8 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. A partial patch was issued in version 2.1.8. The vulnerability was fully patched in 2.1.9.
Weakness: CWE-79
Which versions are affected by CVE-2023-4599?
It affects 1 product.
Products include Wp-Webhooks Email Encoder.
How do I fix CVE-2023-4599?
No fix has been published for CVE-2023-4599 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-2023-4599 being exploited?
There is no known exploitation of CVE-2023-4599 in the wild and no public exploit code.
Other vulnerabilities in onlineoptimisation Email Encoder – Protect Email Addresses and Phone Numbers
Sources
Also known as GHSA-76p2-85pf-cqf5.