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Profilegrid CVE-2023-3404

MEDIUM
Use of Hard-coded Cryptographic Key (CWE-321)
2023-08-31 security@wordfence.com
4.9
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A04:2025 - Cryptographic Failures
ASVS 5.0
V11 - Cryptography Key management, no hard-coded keys
Impact

CVSS score of 4.9 (MEDIUM). Attack characteristics: network attack vector, low complexity, high privileges required, no user interaction not required. EPSS exploitation probability: 0.16%.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAI

The ProfileGrid plugin for WordPress is vulnerable to unauthorized decryption of private information in versions up to, and including, 5.5.0. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

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Technical ContextAI · show details

This vulnerability is classified under CWE-321. 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. Affected products include: Metagauss Profilegrid.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 4.9 MEDIUM
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

2
Patch released
Apr 08, 2026 - 18:22 nvd
Patch available
CVE Published
Aug 31, 2023 - 06:15 nvd
MEDIUM 4.9

DescriptionCVE.org

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.

Threat Intelligence Overview

EPSS Score
0.2%
Top 64% exploitable
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

24
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +24
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)CVE.org

cpe:2.3:a:metagauss:profilegrid:*:*:*:*:*:wordpress:*:*
CVE-2024-30491 HIGH
8.5 Mar 29

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Metagauss ProfileG

CVE-2024-30490 CRITICAL POC
9.3 Mar 29

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Metagauss ProfileG

CVE-2026-103693 CRITICAL POC
9.0 Oct 29

PHP object injection in the Frontend Dashboard WordPress plugin before 3.0.5 and the ProfileGrid WordPress plugin before

CVE-2023-0940 HIGH POC
8.8 Mar 20

The ProfileGrid WordPress plugin before 5.3.1 provides an AJAX endpoint for resetting a user password but does not imple

CVE-2019-15873 HIGH POC
8.8 Sep 03

The profilegrid-user-profiles-groups-and-communities plugin before 2.8.6 for WordPress has remote code execution via an

CVE-2026-12687 HIGH POC
7.5 Jul 30

Privilege escalation in the ProfileGrid WordPress plugin before 5.9.9.8 lets unauthenticated visitors self-register into

CVE-2026-12688 MEDIUM POC
6.5 Jul 24

Authentication bypass in ProfileGrid WordPress plugin allows unauthenticated attackers to forge PayPal IPN payment notif

CVE-2022-3578 MEDIUM POC
6.1 Nov 14

The ProfileGrid WordPress plugin before 5.1.1 does not sanitise and escape a parameter before outputting it back in the

CVE-2026-12689 MEDIUM POC
5.4 Jul 24

Missing authorization checks in ProfileGrid WordPress plugin prior to 5.9.9.7 allow authenticated subscribers to manipul

CVE-2026-16290 MEDIUM POC
5.3 Aug 06

ProfileGrid WordPress plugin (all versions before 6.0.0.0) exposes group member lists and member identifiers to unauthen

CVE-2024-30241 HIGH
8.5 Mar 28

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Metagauss ProfileG

CVE-2025-0724 HIGH
8.8 Mar 22

The ProfileGrid - User Profiles, Groups and Communities plugin for WordPress is vulnerable to PHP Object Injection in al

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