CVE-2020-21667: In fastadmin-tp6 v1.0, in the file app/admin/controller/Ajax.php the 'table' parameter passed is not filtered

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HIGH 7.2DOWNGRADE

CVE-2020-21667 is a high-severity flaw (CVSS 7.2) affecting fastadmin-tp6. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In fastadmin-tp6 v1.0, in the file app/admin/controller/Ajax.php the 'table' parameter passed is not filtered so a malicious parameter can be passed for SQL injection.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	1.0% (top 36%)
CISA exploited list	No
Weakness	CWE-89
Published	2020-11-13
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fastadmin-tp6 project

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

Am I affected?

Timeline

2020-11-13 16:15 UTCPublished CVE record published
2026-06-17 03:03 UTCUpdated Record last modified

fastadmin-tp6 project fastadmin-tp6 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 fastadmin-tp6 || rpm -q fastadmin-tp6 || fastadmin-tp6 --version

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

apt-cache madison fastadmin-tp6 sudo apt install fastadmin-tp6=<VERSION_BEFORE_1.0> sudo apt-mark hold fastadmin-tp6

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

dnf --showduplicates list fastadmin-tp6 sudo dnf downgrade fastadmin-tp6-<VERSION_BEFORE_1.0> sudo dnf versionlock add fastadmin-tp6

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-2020-21667?

fastadmin-tp6: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-21667 being exploited?

CVE-2020-21667 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-2020-21667 affect?

CVE-2020-21667 affects fastadmin-tp6. Severity is high (CVSS 7.2). In fastadmin-tp6 v1.0, in the file app/admin/controller/Ajax.php the 'table' parameter passed is not filtered so a malicious parameter can be passed for SQL injection.

How urgent is CVE-2020-21667?

Priority 46/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

References

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