CVE-2023-4372 LiteSpeed Cache <= 5.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
Authenticated attackers can inject arbitrary scripts via the esi shortcode, 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-2023-4372?
CVE-2023-4372 is a medium-severity cross-site scripting vulnerability in litespeedtech LiteSpeed Cache, published on 11 Jan 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'esi' shortcode in versions up to, and including, 5.6 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-2023-4372?
It affects 1 product.
Products include Litespeedtech Litespeed Cache.
How do I fix CVE-2023-4372?
No fix has been published for CVE-2023-4372 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-2023-4372 being exploited?
There is no known exploitation of CVE-2023-4372 in the wild and no public exploit code.
Other vulnerabilities in litespeedtech LiteSpeed Cache
- CVE-2024-44000 WordPress LiteSpeed Cache plugin < 6.5.0.1 - Unauthenticated Account Takeover via Cookie Leak vulnerability
- CVE-2024-28000 WordPress LiteSpeed Cache plugin <= 6.3.0.1 - Unauthenticated Privilege Escalation vulnerability
- CVE-2024-47637 WordPress LiteSpeed Cache plugin <= 6.4.1 - Path Traversal vulnerability
- CVE-2023-40000 WordPress LiteSpeed Cache plugin <= 5.7 - Unauthenticated Site Wide Stored XSS vulnerability
- CVE-2023-45000 WordPress LiteSpeed Cache plugin <= 5.7 - Unauthenticated Broken Access Control on API vulnerability
Sources
Also known as GHSA-83mf-fxp9-269m.