CVE-2021-34621
ProfilePress 3.0 - 3.1.3 - Unauthenticated Privilege Escalation
A vulnerability in the user registration component found in the ~/src/Classes/RegistrationAuth.php file of the ProfilePress WordPress plugin made it possible for users to register on sites as an administrator. This issue affects versions 3.0.0 - 3.1.3. .
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
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
ProfilePress 3.0 - 3.1.3 - Unauthenticated Privilege Escalation
A vulnerability in the user registration component found in the ~/src/Classes/RegistrationAuth.php file of the ProfilePress WordPress plugin made it possible for users to register on sites as an administrator. This issue affects versions 3.0.0 - 3.1.3. .
- Record
CVE-2021-34621- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-269
- Updated
- 2026-11-02
EUVDEUVD-2021-21271
A vulnerability in the user registration component found in the ~/src/Classes/RegistrationAuth.php file of the ProfilePress WordPress plugin made it possible for users to register on sites as an administrator. This issue affects versions 3.0.0 - 3.1.3. .
- Record
EUVD-2021-21271- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-h9qm-fw5r-9vmm
A vulnerability in the user registration component found in the ~/src/Classes/RegistrationAuth...
A vulnerability in the user registration component found in the ~/src/Classes/RegistrationAuth.php file of the ProfilePress WordPress plugin made it possible for users to register on sites as an administrator. This issue affects versions 3.0.0 - 3.1.3. .
- Record
GHSA-h9qm-fw5r-9vmm- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-269, CWE-306
- Updated
- 2026-11-02
NVD
A vulnerability in the user registration component found in the ~/src/Classes/RegistrationAuth.php file of the ProfilePress WordPress plugin made it possible for users to register on sites as an administrator. This issue affects versions 3.0.0 - 3.1.3. .
- Record
CVE-2021-34621- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-269, CWE-306
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | WordPress Plugin ProfilePress 3.1.3 - Privilege Escalation (Unauthenticated) | 2021-08-31 |
| Nuclei | WordPress ProfilePress 3.0.0-3.1.3 - Admin User Creation Weakness | |
| PoC in GitHub | RandomRobbieBF/CVE-2021-34621 | 2023-08-09 |
| PoC in GitHub | navreet1425/CVE-2021-34621 | 2023-09-30 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products, published | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, Nuclei, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-34621 is a critical vulnerability (CVSS 9.8) in Profilepress, published July 7, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 68.9%, the 99th percentile. No source names a fixed version.