Quick answers
- Is CVE-2026-78303 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-78303 being exploited in the wild.
- How severe is CVE-2026-78303?
- Informational severity, published 10 September 2026.
- Which products and versions are affected?
- JoomShaper SP Property < 4.1.4.
- Is there a fix for CVE-2026-78303?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-78303 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-78303?
- Check whether you run JoomShaper SP Property at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability exists in SP Property's booking request and contact forms, which relied on client-submitted hidden form fields to determine the email recipient address. An attacker could intercept and modify these fields before submission, causing booking inquiries to be sent to arbitrary email addresses. This is a form manipulation and unvalidated redirect issue. The attack requires network access to the form and no authentication, but does require the attacker to interact with the form submission process. The fix is available in SP Property version 4.1.4 and later, which should validate and enforce email destinations server-side.
Affected products
- JoomShaper SP Property < 4.1.4
Timeline
- 2026-09-10: disclosed