CVE-2021-37476: In NavigateCMS version 2.9.4 and below, function in `product.php` is vulnerable to sql injection on parameter

Q: How do I fix CVE-2021-37476?

navigatecms: upgrade to newer than 2.9.4. Exact commands for each OS are on this page.

Q: Is CVE-2021-37476 being exploited?

CVE-2021-37476 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-2021-37476 affect?

CVE-2021-37476 affects navigatecms. Severity is critical (CVSS 9.8). In NavigateCMS version 2.9.4 and below, function in `product.php` is vulnerable to sql injection on parameter `id` through a post request, which results in arbitrary sql query execution in the backend database.

Q: How urgent is CVE-2021-37476?

Priority 65/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2021-37476 is a critical-severity flaw (CVSS 9.8) affecting navigatecms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In NavigateCMS version 2.9.4 and below, function in `product.php` is vulnerable to sql injection on parameter `id` through a post request, which results in arbitrary sql query execution in the backend database.

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	2.2% (top 18%)
CISA exploited list	No
Weakness	CWE-89
Published	2021-07-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: naviwebs

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

Am I affected?

Timeline

2021-07-26 18:15 UTCPublished CVE record published
2026-06-17 04:00 UTCUpdated Record last modified

naviwebs navigatecms UPGRADE

Affected: <= 2.9.4

Fixed in: newer than 2.9.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy navigatecms || rpm -q navigatecms || navigatecms --version

2. UPGRADE to newer than 2.9.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade navigatecms

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade navigatecms

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-2021-37476?

navigatecms: upgrade to newer than 2.9.4. Exact commands for each OS are on this page.

Is CVE-2021-37476 being exploited?

CVE-2021-37476 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-2021-37476 affect?

CVE-2021-37476 affects navigatecms. Severity is critical (CVSS 9.8). In NavigateCMS version 2.9.4 and below, function in `product.php` is vulnerable to sql injection on parameter `id` through a post request, which results in arbitrary sql query execution in the backend database.

How urgent is CVE-2021-37476?

Priority 65/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

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CVE-2021-37473 CRITICAL 9.8 UPGRADE In NavigateCMS version 2.9.4 and below, function in `product.php` is vulnerable to sql injection on parameter
CVE-2020-23243 MEDIUM 4.8 DOWNGRADE Cross Site Scripting (XSS) vulnerability in NavigateCMS NavigateCMS 2.9 via the name="wrong_path_redirect" fea

References

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