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

Q: How do I fix CVE-2022-3894?

oauth server: upgrade to 4.2.5. Exact commands for each OS are on this page.

Q: Is CVE-2022-3894 being exploited?

CVE-2022-3894 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-2022-3894 affect?

CVE-2022-3894 affects oauth server. Severity is medium (CVSS 4.3). The WP OAuth Server (OAuth Authentication) WordPress plugin before 4.2.5 does not have CSRF check when deleting a client, and does not ensure that the object to be deleted is actually a client, which could allow attackers to make a logged i

Q: How urgent is CVE-2022-3894?

Priority 24/100. Public exploit reference

Routine

MEDIUM 4.3UPGRADE

CVE-2022-3894 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 4.2.5 does not have CSRF check when deleting a client, and does not ensure that the object to be deleted is actually a client, which could allow attackers to make a logged in admin delete arbitrary client and post via a CSRF attack.

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	None
User interaction	Required
EPSS exploit chance	0.3% (top 83%)
CISA exploited list	No
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 05:00 UTCUpdated Record last modified

dash10 oauth server UPGRADE

Affected: < 4.2.5

Fixed in: 4.2.5

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 4.2.5 (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-2022-3894?

oauth server: upgrade to 4.2.5. Exact commands for each OS are on this page.

Is CVE-2022-3894 being exploited?

CVE-2022-3894 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-2022-3894 affect?

CVE-2022-3894 affects oauth server. Severity is medium (CVSS 4.3). The WP OAuth Server (OAuth Authentication) WordPress plugin before 4.2.5 does not have CSRF check when deleting a client, and does not ensure that the object to be deleted is actually a client, which could allow attackers to make a logged i

How urgent is CVE-2022-3894?

Priority 24/100. Public exploit reference

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2022-4148 MEDIUM 4.3 UPGRADE The WP OAuth Server (OAuth Authentication) WordPress plugin before 4.3.0 has a flawed CSRF and authorisation c

References

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