CVE-2022-4148: The WP OAuth Server (OAuth Authentication) WordPress plugin before 4.3.0 has a flawed CSRF and authorisation c

Q: How do I fix CVE-2022-4148?

oauth server: upgrade to 4.3.0. Exact commands for each OS are on this page.

Q: Is CVE-2022-4148 being exploited?

CVE-2022-4148 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-2022-4148 affect?

CVE-2022-4148 affects oauth server. Severity is medium (CVSS 4.3). The WP OAuth Server (OAuth Authentication) WordPress plugin before 4.3.0 has a flawed CSRF and authorisation check when deleting a client, which could allow any authenticated users, such as subscriber to delete arbitrary client.

Q: How urgent is CVE-2022-4148?

Priority 25/100. Public exploit reference

Routine

MEDIUM 4.3UPGRADE

CVE-2022-4148 is a medium-severity flaw (CVSS 4.3) affecting oauth server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The WP OAuth Server (OAuth Authentication) WordPress plugin before 4.3.0 has a flawed CSRF and authorisation check when deleting a client, which could allow any authenticated users, such as subscriber to delete arbitrary client.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 82%)
CISA exploited list	No
Weakness	CWE-352, CWE-862
Published	2023-03-20
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: dash10

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

Am I affected?

Timeline

2023-03-20 16:15 UTCPublished CVE record published
2026-06-17 05:20 UTCUpdated Record last modified

dash10 oauth server UPGRADE

Affected: < 4.3.0

Fixed in: 4.3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy oauth-server || rpm -q oauth-server || oauth-server --version

2. UPGRADE to 4.3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade oauth-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade oauth-server

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-2022-4148?

oauth server: upgrade to 4.3.0. Exact commands for each OS are on this page.

Is CVE-2022-4148 being exploited?

CVE-2022-4148 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-2022-4148 affect?

CVE-2022-4148 affects oauth server. Severity is medium (CVSS 4.3). The WP OAuth Server (OAuth Authentication) WordPress plugin before 4.3.0 has a flawed CSRF and authorisation check when deleting a client, which could allow any authenticated users, such as subscriber to delete arbitrary client.

How urgent is CVE-2022-4148?

Priority 25/100. Public exploit reference

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2022-3894 MEDIUM 4.3 UPGRADE The WP OAuth Server (OAuth Authentication) WordPress plugin before 4.2.5 does not have CSRF check when deletin

References

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