CVE-2026-9620 WP Latest Posts <= 5.0.11 - Authenticated (Author+) Stored Cross-Site Scripting via Post Content Image src Attribute
Authenticated attackers can inject arbitrary scripts via image src attributes in post content, 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-2026-9620?
CVE-2026-9620 is a medium-severity cross-site scripting vulnerability in joomunited WP Latest Posts, published on 24 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The WP Latest Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via crafted image src attributes in post content in versions up to, and including, 5.0.11. This is due to insufficient output escaping in the field() and loop() functions, which extract the raw src attribute value from <img> tags within post_content using a regular expression and then reconstruct new <img> elements or CSS background-image declarations by directly concatenating the unescaped value — bypassing WordPress's kses filtering entirely. This makes it possible for authenticated attackers, with author-level access and above, 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-2026-9620?
How do I fix CVE-2026-9620?
No fix has been published for CVE-2026-9620 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-2026-9620 being exploited?
There is no known exploitation of CVE-2026-9620 in the wild and no public exploit code.
Sources
Also known as GHSA-4mxp-2cfv-x3f6.