CVE-2022-1601: The User Access Manager WordPress plugin before 2.2.18 prioritizes getting a visitor's IP from certain HTTP he

Q: How do I fix CVE-2022-1601?

user access manager: upgrade to 2.2.18. Exact commands for each OS are on this page.

Q: Is CVE-2022-1601 being exploited?

CVE-2022-1601 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-2022-1601 affect?

CVE-2022-1601 affects user access manager. Severity is medium (CVSS 5.3). The User Access Manager WordPress plugin before 2.2.18 prioritizes getting a visitor's IP from certain HTTP headers over PHP's REMOTE_ADDR, which makes it possible for attackers to access restricted content in certain situations.

Q: How urgent is CVE-2022-1601?

Priority 41/100. Public exploit reference; Remotely exploitable, no login, no user action

This week

MEDIUM 5.3REMOTEUPGRADE

CVE-2022-1601 is a medium-severity flaw (CVSS 5.3) affecting user access manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The User Access Manager WordPress plugin before 2.2.18 prioritizes getting a visitor's IP from certain HTTP headers over PHP's REMOTE_ADDR, which makes it possible for attackers to access restricted content in certain situations.

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	0.6% (top 52%)
CISA exploited list	No
Published	2023-08-30
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: alexanderschneider

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

Am I affected?

Timeline

2023-08-30 15:15 UTCPublished CVE record published
2026-06-17 04:22 UTCUpdated Record last modified

alexanderschneider user access manager UPGRADE

Affected: < 2.2.18

Fixed in: 2.2.18

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy user-access-manager || rpm -q user-access-manager || user-access-manager --version

2. UPGRADE to 2.2.18 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade user-access-manager

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade user-access-manager

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-2022-1601?

user access manager: upgrade to 2.2.18. Exact commands for each OS are on this page.

Is CVE-2022-1601 being exploited?

CVE-2022-1601 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-2022-1601 affect?

CVE-2022-1601 affects user access manager. Severity is medium (CVSS 5.3). The User Access Manager WordPress plugin before 2.2.18 prioritizes getting a visitor's IP from certain HTTP headers over PHP's REMOTE_ADDR, which makes it possible for attackers to access restricted content in certain situations.

How urgent is CVE-2022-1601?

Priority 41/100. Public exploit reference; Remotely exploitable, no login, no user action

Software pages

WordPress vulnerabilities · PHP vulnerabilities

References

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