CVE-2021-24916
Qubely < 1.8.6 - Unauthenticated Arbitrary E-mail Sending
The Qubely WordPress plugin before 1.8.6 allows unauthenticated user to send arbitrary e-mails to arbitrary addresses via the qubely_send_form_data AJAX action.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
The Qubely WordPress plugin before 1.8.6 allows unauthenticated user to send arbitrary e-mails to arbitrary addresses via the qubely_send_form_data AJAX action.
- Record
CVE-2021-24916- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
CVE List No score
Qubely < 1.8.6 - Unauthenticated Arbitrary E-mail Sending
The Qubely WordPress plugin before 1.8.6 allows unauthenticated user to send arbitrary e-mails to arbitrary addresses via the qubely_send_form_data AJAX action.
- Record
CVE-2021-24916- Updated
- 2026-11-02
EUVDEUVD-2021-11828
The Qubely WordPress plugin before 1.8.6 allows unauthenticated user to send arbitrary e-mails to arbitrary addresses via the qubely_send_form_data AJAX action.
- Record
EUVD-2021-11828- CVSS
- 0.0 None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-w9rc-g9q5-4rpr
The Qubely WordPress plugin before 1.8.6 allows unauthenticated user to send arbitrary e-mails to...
The Qubely WordPress plugin before 1.8.6 allows unauthenticated user to send arbitrary e-mails to arbitrary addresses via the qubely_send_form_data AJAX action.
- Record
GHSA-w9rc-g9q5-4rpr- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-284
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Nuclei | WordPress Qubely < 1.8.6 - Unauthenticated Email Sending |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, Nuclei, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-24916 is a high vulnerability (CVSS 7.5) in Themeum Qubely, published August 7, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.71%, the 77th percentile. No source names a fixed version.