Skip to main content
Exploitation reportedNot in CISA KEV yet

CVE-2021-34621

Exploitation reported by one source. First attested on 2021-06-28 by GCVE · kevintel.

  • Published2021-07-07
  • WeaknessCWE-269 · CWE-306

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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. .

Timeline

dates in UTC
  1. 2021-06-2811:22Listed as exploited by GCVEGCVE
  2. 2021-06-2811:22Exploitation first reportedGCVE
  3. 2021-07-0713:15CVE publishedNVD
  4. 2021-08-31Exploit-DB entryExploit-DB

Observed activity

isMalicious corpus · updated 2026-11-04 09:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-34621?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-34621?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · CISA-ADP
Properfraction profilepress
BranchAffectedFixed in
3.x≥ 3.0.0, ≤ 3.1.3no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As Wordfence, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • ProfilePress
    Affected
    • = 3.0.0 - 3.1.3no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2021-08-31

Fix

No fix published by the sources we read yet. NVD record

Detection

read 2026-11-03 22:42 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
EDB-50242
Exploit-DB
Proof-of-concept repositories
2 repositories, unverifiedRandomRobbieBF/CVE-2021-34621navreet1425/CVE-2021-34621
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2021-07-07
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-h9qm-fw5r-9vmm

Frequently asked questions

What is CVE-2021-34621?

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. .

Is CVE-2021-34621 actively exploited?

A proof-of-concept exploit exists for CVE-2021-34621, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2021-34621?

CVE-2021-34621 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Hear about the next vulnerability in your software

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, November 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record