ProfileGrid <= 5.5.0 — Hardcoded Encryption Key
CVE-2023-3404Published · Updated Action summary
Affected: ≤5.5.0Update to 5.5.1 or newer
All remediation steps- Severity
- Medium4.9
- CVSS
- 4.9CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:HPrivileges required- High
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:NIntegrity- None
A:NAvailability- None
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
ProfileGrid – User Profiles, Groups and Communities profilegrid-user-profiles-groups-and-communities
- Affected≤ 5.5.0
- Patched in5.5.1
Update to 5.5.1 or newer.
You are affected if you run ≤ 5.5.0. Version 5.5.1 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under ProfileGrid – User Profiles, Groups and Communities.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 5.5.1, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch ProfileGrid – User Profiles, Groups and Communities to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to István Márton.
The ProfileGrid plugin for WordPress is vulnerable to unauthorized decryption of private information in versions up to, and including, 5.5.0. This is due to the passphrase and iv being hardcoded in the 'pm_encrypt_decrypt_pass' function and used across all sites running the plugin. This makes it possible for authenticated attackers, with administrator-level permissions or above to decrypt and view users' passwords. If combined with another vulnerability, this can potentially grant lower-privileged users access to users' passwords.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in ProfileGrid – User Profiles, Groups and Communities
All 66| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High8.1 | Unauthenticated PHP Object Injection ≤6.0.0.4Update to 6.0.0.5 | CVE-2026-103693 | |
| Medium6.5 | Authenticated (Subscriber+) SQL Injection ≤6.0.0.2Update to 6.0.0.3 | CVE-2026-94663 | |
| Medium5.3 | Unauthenticated Insecure Direct Object Reference ≤6.0.0.2Update to 6.0.0.3 | CVE-2026-62061 | |
| Medium4.3 | Authenticated (Subscriber+) Insecure Direct Object Reference <5.9.9.8Update to 5.9.9.8 | CVE-2026-16291 | |
| Medium5.3 | Missing Authorization ≤5.0.0.0Update to 6.0.0.0 | CVE-2026-16290 |
- High8.1Unauthenticated PHP Object Injection
≤6.0.0.4Update to 6.0.0.5
- Medium6.5Authenticated (Subscriber+) SQL Injection
≤6.0.0.2Update to 6.0.0.3
- Medium5.3Unauthenticated Insecure Direct Object Reference
≤6.0.0.2Update to 6.0.0.3
- Medium4.3Authenticated (Subscriber+) Insecure Direct Object Reference
<5.9.9.8Update to 5.9.9.8
- Medium5.3Missing Authorization
≤5.0.0.0Update to 6.0.0.0
Timeline
CVE published
Severity medium, CVSS 4.9
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.