CVE-2024-6624: The JSON API User plugin for WordPress is vulnerable to privilege escalation in all versions up to, and includ

Q: How do I fix CVE-2024-6624?

json api user: upgrade to 3.9.4. Exact commands for each OS are on this page.

Q: Is CVE-2024-6624 being exploited?

CVE-2024-6624 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-6624 affect?

CVE-2024-6624 affects json api user. Severity is critical (CVSS 9.8). The JSON API User plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 3.9.3. This is due to improper controls on custom user meta fields. This makes it possible for unauthenticated attackers to r

Q: How urgent is CVE-2024-6624?

Priority 61/100. Critical severity; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2024-6624 is a critical-severity flaw (CVSS 9.8) affecting json api user. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The JSON API User plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 3.9.3. This is due to improper controls on custom user meta fields. This makes it possible for unauthenticated attackers to register as administrators on the site. The plugin requires the JSON API plugin to also be installed.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.9% (top 13%)
CISA exploited list	No
Weakness	CWE-269
Published	2024-07-11
Last modified	2026-06-17

Publisher (CNA): Wordfence · Vendor: parorrey

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-07-11 07:15 UTCPublished CVE record published
2026-06-17 08:18 UTCUpdated Record last modified

parorrey json api user UPGRADE

Affected: < 3.9.4

Fixed in: 3.9.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy json-api-user || rpm -q json-api-user || json-api-user --version

2. UPGRADE to 3.9.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade json-api-user

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade json-api-user

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-6624?

json api user: upgrade to 3.9.4. Exact commands for each OS are on this page.

Is CVE-2024-6624 being exploited?

CVE-2024-6624 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-6624 affect?

CVE-2024-6624 affects json api user. Severity is critical (CVSS 9.8). The JSON API User plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 3.9.3. This is due to improper controls on custom user meta fields. This makes it possible for unauthenticated attackers to r

How urgent is CVE-2024-6624?

Priority 61/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

WordPress vulnerabilities

References

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