CVE-2026-123670
Essential Real Estate 5.3.5 - Customer+ Email Relay Allowlist Poisoning
CVE-2026-123670 is a medium vulnerability (CVSS 4.3) in G5theme Essential Real Estate, published November 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. No source names a fixed version.
- Severity
- 4.3 MediumCVSS 3.1, CVE List
- Exploit chance
- 0.14%EPSS, 3rd percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
The Essential Real Estate WordPress plugin before 5.3.6 does not verify that the recipients it allows for its contact email action are legitimate, allowing users with the self-registered Customer role to add any address to that allowlist so that unauthenticated users can then send emails with attacker-controlled content to it through the site.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
Affected products
What each source reports
CVE List Score used
Essential Real Estate 5.3.5 - Customer+ Email Relay Allowlist Poisoning
The Essential Real Estate WordPress plugin before 5.3.6 does not verify that the recipients it allows for its contact email action are legitimate, allowing users with the self-registered Customer role to add any address to that allowlist so that unauthenticated users can then send emails with attacker-controlled content to it through the site.
- Record
CVE-2026-123670- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-284
- Updated
- 2026-11-13
EUVDEUVD-2026-124846
The Essential Real Estate WordPress plugin before 5.3.6 does not verify that the recipients it allows for its contact email action are legitimate, allowing users with the self-registered Customer role to add any address to that allowlist so that unauthenticated users can then send emails with attacker-controlled content to it through the site.
- Record
EUVD-2026-124846- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-13
GitHub AdvisoriesGHSA-357g-jxh5-c9w4
The Essential Real Estate WordPress plugin before 5.3.6 does not verify that the recipients it...
The Essential Real Estate WordPress plugin before 5.3.6 does not verify that the recipients it allows for its contact email action are legitimate, allowing users with the self-registered Customer role to add any address to that allowlist so that unauthenticated users can then send emails with attacker-controlled content to it through the site.
- Record
GHSA-357g-jxh5-c9w4- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-284
- Updated
- 2026-11-13
NVD
The Essential Real Estate WordPress plugin before 5.3.6 does not verify that the recipients it allows for its contact email action are legitimate, allowing users with the self-registered Customer role to add any address to that allowlist so that unauthenticated users can then send emails with attacker-controlled content to it through the site.
- Record
CVE-2026-123670- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-284
- Updated
- 2026-11-13
History
| Recorded | Changed | Sources |
|---|---|---|
| cwes, severity | CVE List, NVD | |
| published | EUVD | |
| aliases, products | EUVD | |
| products, published, references, title | CVE List | |
| first indexed | GitHub Advisories |
Dates are when Every CVE recorded each change. Upstream dates may differ.