CVE-2020-23981: 13enforme CMS 1.0 has Cross Site Scripting via the "content.php" id parameter.

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MEDIUM 6.1DOWNGRADE

CVE-2020-23981 is a medium-severity flaw (CVSS 6.1) affecting 13enforme cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

13enforme CMS 1.0 has Cross Site Scripting via the "content.php" id parameter.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-79
Published	2020-08-27
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: 13enforme

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

Am I affected?

Timeline

2020-08-27 15:15 UTCPublished CVE record published
2026-06-17 03:05 UTCUpdated Record last modified

13enforme 13enforme 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 13enforme-cms || rpm -q 13enforme-cms || 13enforme-cms --version

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

apt-cache madison 13enforme-cms sudo apt install 13enforme-cms=<VERSION_BEFORE_1.0> sudo apt-mark hold 13enforme-cms

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

dnf --showduplicates list 13enforme-cms sudo dnf downgrade 13enforme-cms-<VERSION_BEFORE_1.0> sudo dnf versionlock add 13enforme-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-2020-23981?

13enforme cms: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-23981 being exploited?

CVE-2020-23981 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-2020-23981 affect?

CVE-2020-23981 affects 13enforme cms. Severity is medium (CVSS 6.1). 13enforme CMS 1.0 has Cross Site Scripting via the "content.php" id parameter.

How urgent is CVE-2020-23981?

Priority 41/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2020-23979 CRITICAL 9.8 DOWNGRADE 13enforme CMS 1.0 has SQL Injection via the 'content.php' id parameter.

References

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