CVE-2020-18263: PHP-CMS v1.0 was discovered to contain a SQL injection vulnerability in the component search.php via the searc

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2020-18263 is a high-severity flaw (CVSS 7.5) affecting php-cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHP-CMS v1.0 was discovered to contain a SQL injection vulnerability in the component search.php via the search parameter. This vulnerability allows attackers to access sensitive database information.

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	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-89
Published	2021-11-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: php-cms project

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

Am I affected?

Timeline

2021-11-03 18:15 UTCPublished CVE record published
2026-06-17 02:59 UTCUpdated Record last modified

php-cms project php-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 php-cms || rpm -q php-cms || php-cms --version

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

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

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

dnf --showduplicates list php-cms sudo dnf downgrade php-cms-<VERSION_BEFORE_1.0> sudo dnf versionlock add php-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-2020-18263?

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

Is CVE-2020-18263 being exploited?

CVE-2020-18263 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-2020-18263 affect?

CVE-2020-18263 affects php-cms. Severity is high (CVSS 7.5). PHP-CMS v1.0 was discovered to contain a SQL injection vulnerability in the component search.php via the search parameter. This vulnerability allows attackers to access sensitive database information.

How urgent is CVE-2020-18263?

Priority 52/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

References

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