CVE-2022-4831: The Custom User Profile Fields for User Registration WordPress plugin before 1.8.1 does not validate and escap

Q: How do I fix CVE-2022-4831?

custom user profile fields for user registration: upgrade to 1.8.1. Exact commands for each OS are on this page.

Q: Is CVE-2022-4831 being exploited?

CVE-2022-4831 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-2022-4831 affect?

CVE-2022-4831 affects custom user profile fields for user registration. Severity is medium (CVSS 5.4). The Custom User Profile Fields for User Registration WordPress plugin before 1.8.1 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contribu

Q: How urgent is CVE-2022-4831?

Priority 35/100. Public exploit reference

Routine

MEDIUM 5.4UPGRADE

CVE-2022-4831 is a medium-severity flaw (CVSS 5.4) affecting custom user profile fields for user registration. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Custom User Profile Fields for User Registration WordPress plugin before 1.8.1 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.5% (top 54%)
CISA exploited list	No
Published	2023-01-30
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: paidmembershipspro

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

Am I affected?

Timeline

2023-01-30 21:15 UTCPublished CVE record published
2026-06-17 05:21 UTCUpdated Record last modified

paidmembershipspro custom user profile fields for user registration UPGRADE

Affected: < 1.8.1

Fixed in: 1.8.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy custom-user-profile-fields-for-user-registration || rpm -q custom-user-profile-fields-for-user-registration || custom-user-profile-fields-for-user-registration --version

2. UPGRADE to 1.8.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade custom-user-profile-fields-for-user-registration

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade custom-user-profile-fields-for-user-registration

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-2022-4831?

custom user profile fields for user registration: upgrade to 1.8.1. Exact commands for each OS are on this page.

Is CVE-2022-4831 being exploited?

CVE-2022-4831 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-2022-4831 affect?

CVE-2022-4831 affects custom user profile fields for user registration. Severity is medium (CVSS 5.4). The Custom User Profile Fields for User Registration WordPress plugin before 1.8.1 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contribu

How urgent is CVE-2022-4831?

Priority 35/100. Public exploit reference

Software pages

WordPress vulnerabilities

References

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