CVE-2023-5137 Simply Excerpts <= 1.4 - Admin+ Stored XSS
Administrators can inject arbitrary web scripts via unsanitized plugin settings, bypassing unfiltered_html restrictions in multisite environments.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-5137?
CVE-2023-5137 is a medium-severity cross-site scripting vulnerability in Unknown Simply Excerpts, published on 4 Dec 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
The Simply Excerpts WordPress plugin through 1.4 does not sanitize and escape some fields in the plugin settings, which could allow high-privilege users such as an administrator to inject arbitrary web scripts even when the unfiltered_html capability is disallowed (for example in a multisite setup).
Weakness: CWE-79
Which versions are affected by CVE-2023-5137?
It affects 1 product.
Products include Shooflysolutions Simply Excerpts.
How do I fix CVE-2023-5137?
No fix has been published for CVE-2023-5137 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-2023-5137 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-5137 exists.
Sources
Also known as GHSA-w9wc-5fqr-x2g2.