CVE-2021-30000: An issue was discovered in LATRIX 0.6.0

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2021-30000 is a critical-severity flaw (CVSS 9.8) affecting latrix. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in LATRIX 0.6.0. SQL injection in the txtaccesscode parameter of inandout.php leads to information disclosure and code execution.

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	2.1% (top 18%)
CISA exploited list	No
Weakness	CWE-89
Published	2021-04-02
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: latrix project

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

Am I affected?

Timeline

2021-04-02 09:15 UTCPublished CVE record published
2026-06-17 03:49 UTCUpdated Record last modified

latrix project latrix DOWNGRADE

Affected: 0.6.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.6.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.6.0 (Debian / Ubuntu)

apt-cache madison latrix sudo apt install latrix=<VERSION_BEFORE_0.6.0> sudo apt-mark hold latrix

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

dnf --showduplicates list latrix sudo dnf downgrade latrix-<VERSION_BEFORE_0.6.0> sudo dnf versionlock add latrix

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-2021-30000?

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

Is CVE-2021-30000 being exploited?

CVE-2021-30000 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-2021-30000 affect?

CVE-2021-30000 affects latrix. Severity is critical (CVSS 9.8). An issue was discovered in LATRIX 0.6.0. SQL injection in the txtaccesscode parameter of inandout.php leads to information disclosure and code execution.

How urgent is CVE-2021-30000?

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

Software pages

PHP vulnerabilities

References

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