CVE-2026-87970 If-So Dynamic Content 1.8 - 1.10.1 - Reflected XSS via render_ifso_shortcodes
Attackers can execute arbitrary JavaScript in visitors' browsers via a crafted link due to unescaped input in an AJAX response.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-87970?
CVE-2026-87970 is a medium-severity cross-site scripting vulnerability in Unknown If-So Dynamic Content, published on 1 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The If-So Dynamic Content WordPress plugin before 1.10.2 does not escape a request-supplied value before reflecting it in an unauthenticated AJAX response that is served as HTML, allowing attackers to execute arbitrary JavaScript in the browser of a visitor who opens a crafted link.
Weakness: CWE-79
Which versions are affected by CVE-2026-87970?
How do I fix CVE-2026-87970?
No fix has been published for CVE-2026-87970 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-2026-87970 being exploited?
There is no known exploitation of CVE-2026-87970 in the wild and no public exploit code.
Sources
Also known as GHSA-4fx4-j9h4-c94x.