CVE-2023-2032: The Custom 404 Pro WordPress plugin before 3.8.1 does not properly sanitize database inputs, leading to multip

Q: How do I fix CVE-2023-2032?

custom 404 pro: upgrade to 3.8.1. Exact commands for each OS are on this page.

Q: Is CVE-2023-2032 being exploited?

CVE-2023-2032 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-2023-2032 affect?

CVE-2023-2032 affects custom 404 pro. Severity is critical (CVSS 9.8). The Custom 404 Pro WordPress plugin before 3.8.1 does not properly sanitize database inputs, leading to multiple SQL Injection vulnerabilities.

Q: How urgent is CVE-2023-2032?

Priority 59/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2023-2032 is a critical-severity flaw (CVSS 9.8) affecting custom 404 pro. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Custom 404 Pro WordPress plugin before 3.8.1 does not properly sanitize database inputs, leading to multiple SQL Injection vulnerabilities.

Why this priority

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

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 39%)
CISA exploited list	No
Published	2023-06-27
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: kunalnagar

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

Am I affected?

Timeline

2023-06-27 14:15 UTCPublished CVE record published
2026-06-17 05:51 UTCUpdated Record last modified

kunalnagar custom 404 pro UPGRADE

Affected: < 3.8.1

Fixed in: 3.8.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy custom-404-pro || rpm -q custom-404-pro || custom-404-pro --version

2. UPGRADE to 3.8.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade custom-404-pro

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade custom-404-pro

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-2023-2032?

custom 404 pro: upgrade to 3.8.1. Exact commands for each OS are on this page.

Is CVE-2023-2032 being exploited?

CVE-2023-2032 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-2023-2032 affect?

CVE-2023-2032 affects custom 404 pro. Severity is critical (CVSS 9.8). The Custom 404 Pro WordPress plugin before 3.8.1 does not properly sanitize database inputs, leading to multiple SQL Injection vulnerabilities.

How urgent is CVE-2023-2032?

Priority 59/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2024-39646 HIGH 7.1 UPGRADE Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Kunal Cu
CVE-2023-51540 HIGH 7.1 UPGRADE Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Kunal Na
CVE-2023-32740 MEDIUM 5.8 UPGRADE Unauth
CVE-2023-2023 MEDIUM 6.1 UPGRADE The Custom 404 Pro WordPress plugin before 3.7.3 does not escape some URLs before outputting them in attribute

References

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