CVE-2021-24278
Redirection for Contact Form 7 < 2.3.4 - Unauthenticated Arbitrary Nonce Generation
In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, unauthenticated users can use the wpcf7r_get_nonce AJAX action to retrieve a valid nonce for any WordPress action/function.
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
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, unauthenticated users can use the wpcf7r_get_nonce AJAX action to retrieve a valid nonce for any WordPress action/function.
- Record
CVE-2021-24278- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
CVE List No score
Redirection for Contact Form 7 < 2.3.4 - Unauthenticated Arbitrary Nonce Generation
In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, unauthenticated users can use the wpcf7r_get_nonce AJAX action to retrieve a valid nonce for any WordPress action/function.
- Record
CVE-2021-24278- Weakness
- CWE-863
- Updated
- 2026-11-02
EUVDEUVD-2021-11192 No score
In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, unauthenticated users can use the wpcf7r_get_nonce AJAX action to retrieve a valid nonce for any WordPress action/function.
- Record
EUVD-2021-11192- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8xwc-4w4g-wpqp No score
In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, unauthenticated users can...
In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, unauthenticated users can use the wpcf7r_get_nonce AJAX action to retrieve a valid nonce for any WordPress action/function.
- Record
GHSA-8xwc-4w4g-wpqp- Weakness
- CWE-863
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Nuclei | WordPress Contact Form 7 <2.3.4 - Arbitrary Nonce Generation |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, Nuclei, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-24278 is a high vulnerability (CVSS 7.5) in Query Solutions Redirection For Contact Form 7, published May 14, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 7.36%, the 94th percentile. No source names a fixed version.