CVE-2026-4022 Show Posts list <= 1.1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
Authenticated contributors can inject arbitrary scripts via shortcode attributes, leading to script 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-2026-4022?
CVE-2026-4022 is a medium-severity cross-site scripting vulnerability in creativedev4 Show Posts list – Easy designs, filters and more, published on 21 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Show Posts list – Easy designs, filters and more plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'post_type' shortcode attribute in the 'swiftpost-list' shortcode in all versions up to, and including, 1.1.0 due to insufficient input sanitization and output escaping on user-supplied attributes. This makes it possible for authenticated attackers, with contributor-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-2026-4022?
How do I fix CVE-2026-4022?
No fix has been published for CVE-2026-4022 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-2026-4022 being exploited?
There is no known exploitation of CVE-2026-4022 in the wild and no public exploit code.
Sources
Also known as GHSA-2rgw-rqcx-h77r.