CVE-2025-30573 WordPress My Default Post Content plugin <= - 0.7.3 Cross Site Scripting (XSS) Vulnerability
Stored XSS in My Default Post Content plugin allows attackers to inject malicious scripts into web pages viewed by other users.
- 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-2025-30573?
CVE-2025-30573 is a medium-severity cross-site scripting vulnerability in mrdenny My Default Post Content, published on 24 Mar 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in mrdenny My Default Post Content my-default-post-content allows Stored XSS.This issue affects My Default Post Content: from n/a through <= 0.7.3.
Weakness: CWE-79
Which versions are affected by CVE-2025-30573?
How do I fix CVE-2025-30573?
No fix has been published for CVE-2025-30573 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-2025-30573 being exploited?
There is no known exploitation of CVE-2025-30573 in the wild and no public exploit code.
Sources
Also known as GHSA-3x87-43vv-824j.