CVE-2020-19961: A SQL injection vulnerability has been discovered in zz cms version 2019 which allows attackers to retrieve se

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HIGH 7.5REMOTEDOWNGRADE

CVE-2020-19961 is a high-severity flaw (CVSS 7.5) affecting zzcms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A SQL injection vulnerability has been discovered in zz cms version 2019 which allows attackers to retrieve sensitive data via the component subzs.php.

Why this priority

High 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	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.7% (top 22%)
CISA exploited list	No
Weakness	CWE-89
Published	2021-10-14
Last modified	2026-07-09

Publisher (CNA): MITRE · Vendor: zzcms

Last updated 2026-07-09 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-10-14 15:15 UTCPublished CVE record published
2026-07-09 00:16 UTCUpdated Record last modified

zzcms zzcms DOWNGRADE

Affected: 2019

Fixed in: no fixed release known

Safe to downgrade to: a release before 2019

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2019 (Debian / Ubuntu)

apt-cache madison zzcms sudo apt install zzcms=<VERSION_BEFORE_2019> sudo apt-mark hold zzcms

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

dnf --showduplicates list zzcms sudo dnf downgrade zzcms-<VERSION_BEFORE_2019> sudo dnf versionlock add zzcms

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-2020-19961?

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

Is CVE-2020-19961 being exploited?

CVE-2020-19961 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-2020-19961 affect?

CVE-2020-19961 affects zzcms. Severity is high (CVSS 7.5). A SQL injection vulnerability has been discovered in zz cms version 2019 which allows attackers to retrieve sensitive data via the component subzs.php.

How urgent is CVE-2020-19961?

Priority 56/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2025-13171 MEDIUM 6.3 DOWNGRADE A vulnerability was identified in ZZCMS 2023
CVE-2025-14837 MEDIUM 4.7 DOWNGRADE A vulnerability has been found in ZZCMS 2025
CVE-2025-14836 LOW 2.7 DOWNGRADE A flaw has been found in ZZCMS 2025
CVE-2020-23630 HIGH 8.8 DOWNGRADE A blind SQL injection vulnerability exists in zzcms ver201910 based on time (cookie injection).
CVE-2025-22957 CRITICAL 9.8 UPGRADE A SQL injection vulnerability exists in the front-end of the website in ZZCMS <= 2023, which can be exploited

References

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