Quick answers
- Is CVE-2026-90964 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-90964 being exploited in the wild.
- How severe is CVE-2026-90964?
- Informational severity, published 5 November 2026.
- Which products and versions are affected?
- Essential Real Estate before 5.3.5.
- Is there a fix for CVE-2026-90964?
- Yes: fixed in 5.3.5. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-90964 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-90964?
- Check whether you run Essential Real Estate 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.
How to fix
- Fixed in: 5.3.5
Technical details
The plugin fails to validate or restrict the recipient email address in one of its contact email actions, allowing unauthenticated users to manipulate both the recipient and sender fields. Exploitation requires only network access to the vulnerable endpoint with no authentication or user interaction needed beyond sending a crafted HTTP request containing the attacker's chosen email parameters.
Affected products
- Essential Real Estate Essential Real Estate before 5.3.5
Timeline
- 2026-11-02: disclosed
- 2026-11-05: advisory