CVE-2024-6624Network attack vector

Administrator registration via unrestricted user meta keys

Published Jul 11, 2024 · Updated Apr 8, 2026

Privilege escalation in PI Media JSON API User 3.9.3 and earlier allows remote attackers to register WordPress administrator accounts. The register endpoint writes attacker-supplied custom_fields entries into user metadata without blocking role-bearing keys. The JSON API dependency and User controller must be installed and enabled, and successful exploitation grants full site-administration privileges.

CVSS severity9.8
Critical
EPSS probability2.87%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in PI Media JSON API User 3.9.3 and earlier allows remote attackers to register WordPress administrator accounts. The register endpoint writes attacker-supplied custom_fields entries into user metadata without blocking role-bearing keys. The JSON API dependency and User controller must be installed and enabled, and successful exploitation grants full site-administration privileges.

The record

CVE
CVE-2024-6624
Published
Jul 11, 2024
Updated
Apr 8, 2026
Vendor
PI Media
Product
JSON API User
Classifications
CWE-269, T1136
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=3.9.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PI Media · JSON API Userversion=0 <=3.9.3

Published CVSS scores

9.8WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1136Create Account

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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