CVE-2022-4417: The WP Cerber Security, Anti-spam & Malware Scan WordPress plugin before 9.3.3 does not properly block access

Q: How do I fix CVE-2022-4417?

wp cerber security\, anti-spam \& malware scan: upgrade to 9.3.3. Exact commands for each OS are on this page.

Q: Is CVE-2022-4417 being exploited?

CVE-2022-4417 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-2022-4417 affect?

CVE-2022-4417 affects wp cerber security\, anti-spam \& malware scan. Severity is medium (CVSS 5.3). The WP Cerber Security, Anti-spam & Malware Scan WordPress plugin before 9.3.3 does not properly block access to the REST API users endpoint when the blog is in a subdirectory, which could allow attackers to bypass the restriction in place

Q: How urgent is CVE-2022-4417?

Priority 42/100. Public exploit reference; Remotely exploitable, no login, no user action

This week

MEDIUM 5.3REMOTEUPGRADE

CVE-2022-4417 is a medium-severity flaw (CVSS 5.3) affecting wp cerber security\, anti-spam \& malware scan. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The WP Cerber Security, Anti-spam & Malware Scan WordPress plugin before 9.3.3 does not properly block access to the REST API users endpoint when the blog is in a subdirectory, which could allow attackers to bypass the restriction in place and list users

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Published	2023-01-02
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: cerber

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

Am I affected?

Timeline

2023-01-02 22:15 UTCPublished CVE record published
2026-06-17 05:20 UTCUpdated Record last modified

cerber wp cerber security\, anti-spam \& malware scan UPGRADE

Affected: < 9.3.3

Fixed in: 9.3.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy wp-cerber-security-anti-spam--malware-scan || rpm -q wp-cerber-security-anti-spam--malware-scan || wp-cerber-security-anti-spam--malware-scan --version

2. UPGRADE to 9.3.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade wp-cerber-security-anti-spam--malware-scan

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade wp-cerber-security-anti-spam--malware-scan

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-2022-4417?

wp cerber security\, anti-spam \& malware scan: upgrade to 9.3.3. Exact commands for each OS are on this page.

Is CVE-2022-4417 being exploited?

CVE-2022-4417 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-2022-4417 affect?

CVE-2022-4417 affects wp cerber security\, anti-spam \& malware scan. Severity is medium (CVSS 5.3). The WP Cerber Security, Anti-spam & Malware Scan WordPress plugin before 9.3.3 does not properly block access to the REST API users endpoint when the blog is in a subdirectory, which could allow attackers to bypass the restriction in place

How urgent is CVE-2022-4417?

Priority 42/100. Public exploit reference; Remotely exploitable, no login, no user action

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2022-4712 HIGH 7.2 UPGRADE The WP Cerber Security plugin for WordPress is vulnerable to stored cross-site scripting via the log parameter
CVE-2022-2939 MEDIUM 5.3 UPGRADE The WP Cerber Security plugin for WordPress is vulnerable to security protection bypass in versions up to, and

References

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