CVE-2026-79621 CatalogX < 6.1.3 - Unauthenticated Email Content Injection via Shared Transient
Unauthenticated attackers can inject arbitrary content into product enquiry emails sent to site administrators via the CatalogX WordPress plugin.
- 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-2026-79621?
CVE-2026-79621 is a medium-severity vulnerability in Unknown CatalogX, published on 2 Sep 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 CatalogX WordPress plugin before 6.1.3 does not sanitise or escape content that an unauthenticated user can store before including it in the product enquiry notification email sent to the site administrator, allowing unauthenticated attackers to inject arbitrary content into that email, which is delivered when an unrelated visitor later submits a product enquiry.
Weakness: CWE-345
Which versions are affected by CVE-2026-79621?
How do I fix CVE-2026-79621?
No fix has been published for CVE-2026-79621 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-79621 being exploited?
There is no known exploitation of CVE-2026-79621 in the wild and no public exploit code.
Sources
Also known as GHSA-c867-rxhp-5w2v.