CVE-2020-20796: FlameCMS 3.3.5 contains a SQL injection vulnerability in /master/article.php via the "Id" parameter.

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2020-20796 is a critical-severity flaw (CVSS 9.8) affecting flamecms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

FlameCMS 3.3.5 contains a SQL injection vulnerability in /master/article.php via the "Id" parameter.

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 38%)
CISA exploited list	No
Weakness	CWE-89
Published	2021-09-30
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: flamecms project

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

Am I affected?

Timeline

2021-09-30 22:15 UTCPublished CVE record published
2026-06-17 03:03 UTCUpdated Record last modified

flamecms project flamecms DOWNGRADE

Affected: 3.3.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.3.5

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.3.5 (Debian / Ubuntu)

apt-cache madison flamecms sudo apt install flamecms=<VERSION_BEFORE_3.3.5> sudo apt-mark hold flamecms

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

dnf --showduplicates list flamecms sudo dnf downgrade flamecms-<VERSION_BEFORE_3.3.5> sudo dnf versionlock add flamecms

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-2020-20796?

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

Is CVE-2020-20796 being exploited?

CVE-2020-20796 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-2020-20796 affect?

CVE-2020-20796 affects flamecms. Severity is critical (CVSS 9.8). FlameCMS 3.3.5 contains a SQL injection vulnerability in /master/article.php via the "Id" parameter.

How urgent is CVE-2020-20796?

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

Software pages

PHP vulnerabilities

Related CVEs

CVE-2020-20797 CRITICAL 9.8 DOWNGRADE FlameCMS 3.3.5 contains a time-based blind SQL injection vulnerability in /account/register.php.

References

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