CVE-2012-3842: Multiple cross-site scripting (XSS) vulnerabilities in CMD_DOMAIN in JBMC Software DirectAdmin 1.403 allow rem

Routine

MEDIUM 4.3DOWNGRADE

CVE-2012-3842 is a medium-severity flaw (CVSS 4.3) affecting directadmin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site scripting (XSS) vulnerabilities in CMD_DOMAIN in JBMC Software DirectAdmin 1.403 allow remote authenticated users with certain privileges to inject arbitrary web script or HTML via the (1) select0 or (2) select8 parameters.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.2% (top 32%)
CISA exploited list	No
Weakness	CWE-79
Published	2012-07-03
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: directadmin

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2012-07-03 22:55 UTCPublished CVE record published
2026-06-16 23:43 UTCUpdated Record last modified

directadmin directadmin DOWNGRADE

Affected: 1.403

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.403

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.403 (Debian / Ubuntu)

apt-cache madison directadmin sudo apt install directadmin=<VERSION_BEFORE_1.403> sudo apt-mark hold directadmin

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

dnf --showduplicates list directadmin sudo dnf downgrade directadmin-<VERSION_BEFORE_1.403> sudo dnf versionlock add directadmin

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-2012-3842?

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

Is CVE-2012-3842 being exploited?

CVE-2012-3842 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-2012-3842 affect?

CVE-2012-3842 affects directadmin. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in CMD_DOMAIN in JBMC Software DirectAdmin 1.403 allow remote authenticated users with certain privileges to inject arbitrary web script or HTML via the (1) select0 or (2) select8 paramete

How urgent is CVE-2012-3842?

Priority 37/100. Public exploit reference

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References

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