CVE-2021-35283: SQL Injection vulnerability in product_admin.php in atoms183 CMS 1.0, allows attackers to execute arbitrary co

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2021-35283 is a critical-severity flaw (CVSS 9.8) affecting atoms183 cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL Injection vulnerability in product_admin.php in atoms183 CMS 1.0, allows attackers to execute arbitrary commands via the Name, Fname, and ID parameters to search.php.

Why this priority

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

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 36%)
CISA exploited list	No
Weakness	CWE-89
Published	2022-07-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: atoms183 cms project

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

Am I affected?

Timeline

2022-07-07 21:15 UTCPublished CVE record published
2026-06-17 03:57 UTCUpdated Record last modified

atoms183 cms project atoms183 cms DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy atoms183-cms || rpm -q atoms183-cms || atoms183-cms --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison atoms183-cms sudo apt install atoms183-cms=<VERSION_BEFORE_1.0> sudo apt-mark hold atoms183-cms

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list atoms183-cms sudo dnf downgrade atoms183-cms-<VERSION_BEFORE_1.0> sudo dnf versionlock add atoms183-cms

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2021-35283?

atoms183 cms: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-35283 being exploited?

CVE-2021-35283 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-2021-35283 affect?

CVE-2021-35283 affects atoms183 cms. Severity is critical (CVSS 9.8). SQL Injection vulnerability in product_admin.php in atoms183 CMS 1.0, allows attackers to execute arbitrary commands via the Name, Fname, and ID parameters to search.php.

How urgent is CVE-2021-35283?

Priority 60/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

References

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