CVE-2020-28960: Chichen Tech CMS v1.0 was discovered to contain multiple SQL injection vulnerabilities in the file product_lis

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2020-28960 is a critical-severity flaw (CVSS 9.8) affecting chichen tech cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Chichen Tech CMS v1.0 was discovered to contain multiple SQL injection vulnerabilities in the file product_list.php via the id and cid parameters.

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	1.6% (top 25%)
CISA exploited list	No
Weakness	CWE-89
Published	2021-10-22
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: cct95

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

Am I affected?

Timeline

2021-10-22 20:15 UTCPublished CVE record published
2026-06-17 03:10 UTCUpdated Record last modified

cct95 chichen tech cms 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 chichen-tech-cms || rpm -q chichen-tech-cms || chichen-tech-cms --version

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

apt-cache madison chichen-tech-cms sudo apt install chichen-tech-cms=<VERSION_BEFORE_1.0> sudo apt-mark hold chichen-tech-cms

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

dnf --showduplicates list chichen-tech-cms sudo dnf downgrade chichen-tech-cms-<VERSION_BEFORE_1.0> sudo dnf versionlock add chichen-tech-cms

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-2020-28960?

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

Is CVE-2020-28960 being exploited?

CVE-2020-28960 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-2020-28960 affect?

CVE-2020-28960 affects chichen tech cms. Severity is critical (CVSS 9.8). Chichen Tech CMS v1.0 was discovered to contain multiple SQL injection vulnerabilities in the file product_list.php via the id and cid parameters.

How urgent is CVE-2020-28960?

Priority 63/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

References

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