CVE-2023-41161: Multiple stored cross-site scripting (XSS) vulnerabilities in Usermin 2.000 allow remote attackers to inject a

Routine

MEDIUM 5.4DOWNGRADE

CVE-2023-41161 is a medium-severity flaw (CVSS 5.4) affecting usermin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple stored cross-site scripting (XSS) vulnerabilities in Usermin 2.000 allow remote attackers to inject arbitrary web script or HTML via the key comment to different pages such as public key details, Export key, sign key, send to key server page, and fetch from key server page tab.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.5% (top 58%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-09-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: webmin

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

Am I affected?

Timeline

2023-09-07 22:15 UTCPublished CVE record published
2026-06-17 06:20 UTCUpdated Record last modified

webmin usermin DOWNGRADE

Affected: 2.000

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.000

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.000 (Debian / Ubuntu)

apt-cache madison usermin sudo apt install usermin=<VERSION_BEFORE_2.000> sudo apt-mark hold usermin

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

dnf --showduplicates list usermin sudo dnf downgrade usermin-<VERSION_BEFORE_2.000> sudo dnf versionlock add usermin

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-2023-41161?

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

Is CVE-2023-41161 being exploited?

CVE-2023-41161 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-2023-41161 affect?

CVE-2023-41161 affects usermin. Severity is medium (CVSS 5.4). Multiple stored cross-site scripting (XSS) vulnerabilities in Usermin 2.000 allow remote attackers to inject arbitrary web script or HTML via the key comment to different pages such as public key details, Export key, sign key, send to key s

How urgent is CVE-2023-41161?

Priority 30/100. No elevated risk signals yet.

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References

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