CVE-2020-19891: DBHcms v1.2.0 has an Arbitrary file write vulnerability in dbhcms\mod\mod.editor.php $_POST['updatefile'] is f

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HIGH 7.2DOWNGRADE

CVE-2020-19891 is a high-severity flaw (CVSS 7.2) affecting dbhcms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

DBHcms v1.2.0 has an Arbitrary file write vulnerability in dbhcms\mod\mod.editor.php $_POST['updatefile'] is filename and $_POST['tinymce_content'] is file content, there is no filter function for security. A remote authenticated admin user can exploit this vulnerability to get a webshell.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-787
Published	2020-08-24
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: dbhcms project

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

Am I affected?

Timeline

2020-08-24 15:15 UTCPublished CVE record published
2026-06-17 03:00 UTCUpdated Record last modified

dbhcms project dbhcms DOWNGRADE

Affected: 1.2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.2.0 (Debian / Ubuntu)

apt-cache madison dbhcms sudo apt install dbhcms=<VERSION_BEFORE_1.2.0> sudo apt-mark hold dbhcms

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

dnf --showduplicates list dbhcms sudo dnf downgrade dbhcms-<VERSION_BEFORE_1.2.0> sudo dnf versionlock add dbhcms

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-2020-19891?

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

Is CVE-2020-19891 being exploited?

CVE-2020-19891 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-2020-19891 affect?

CVE-2020-19891 affects dbhcms. Severity is high (CVSS 7.2). DBHcms v1.2.0 has an Arbitrary file write vulnerability in dbhcms\mod\mod.editor.php $_POST['updatefile'] is filename and $_POST['tinymce_content'] is file content, there is no filter function for security. A remote authenticated admin user

How urgent is CVE-2020-19891?

Priority 48/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

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References

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