CVE-2020-13567: Multiple SQL injection vulnerabilities exist in phpGACL 3.3.7

This week

CRITICAL 9.8REMOTEDOWNGRADEDOWNGRADE

CVE-2020-13567 is a critical-severity flaw (CVSS 9.8) affecting openemr, phpgacl. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple SQL injection vulnerabilities exist in phpGACL 3.3.7. A specially crafted HTTP request can lead to a SQL injection. An attacker can send an HTTP request to trigger this vulnerability.

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	2.3% (top 16%)
CISA exploited list	No
Weakness	CWE-89
Published	2022-04-18
Last modified	2026-06-17

Publisher (CNA): Talos · Vendor: open-emr · phpgacl project

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

Am I affected?

Timeline

2022-04-18 17:15 UTCPublished CVE record published
2026-06-17 02:53 UTCUpdated Record last modified

open-emr openemr DOWNGRADE

Affected: 5.0.2 · 6.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.0.2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 5.0.2 (Debian / Ubuntu)

apt-cache madison openemr sudo apt install openemr=<VERSION_BEFORE_5.0.2> sudo apt-mark hold openemr

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

dnf --showduplicates list openemr sudo dnf downgrade openemr-<VERSION_BEFORE_5.0.2> sudo dnf versionlock add openemr

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.

phpgacl project phpgacl DOWNGRADE

Affected: 3.3.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.3.7

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.3.7 (Debian / Ubuntu)

apt-cache madison phpgacl sudo apt install phpgacl=<VERSION_BEFORE_3.3.7> sudo apt-mark hold phpgacl

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

dnf --showduplicates list phpgacl sudo dnf downgrade phpgacl-<VERSION_BEFORE_3.3.7> sudo dnf versionlock add phpgacl

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-2020-13567?

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

Is CVE-2020-13567 being exploited?

CVE-2020-13567 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-2020-13567 affect?

CVE-2020-13567 affects openemr, phpgacl. Severity is critical (CVSS 9.8). Multiple SQL injection vulnerabilities exist in phpGACL 3.3.7. A specially crafted HTTP request can lead to a SQL injection. An attacker can send an HTTP request to trigger this vulnerability.

How urgent is CVE-2020-13567?

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

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References

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