CVE-2023-33387: A reflected cross-site scripting (XSS) vulnerability in DATEV eG Personal-Management System Comfort/Comfort Pl

Routine

MEDIUM 6.1UPGRADE

CVE-2023-33387 is a medium-severity flaw (CVSS 6.1) affecting eg personal-management system comfort\/comfort plus. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A reflected cross-site scripting (XSS) vulnerability in DATEV eG Personal-Management System Comfort/Comfort Plus v15.1.0 to v16.1.1 P4 allows attackers to steal targeted users' login data by sending a crafted link.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 56%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-06-22
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: datev

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

Am I affected?

Timeline

2023-06-22 11:15 UTCPublished CVE record published
2026-06-17 06:01 UTCUpdated Record last modified

datev eg personal-management system comfort\/comfort plus UPGRADE

Affected: >= 15.1.0 and < 16.1.1 · 16.1.1 · 16.1.1 p1 · 16.1.1 p2 · 16.1.1 p3 · 16.1.1 p4

Fixed in: 16.1.1

Safe to downgrade to: a release before 15.1.0

1. Check installed version

apt-cache policy eg-personal-management-system-comfortcomfort-plus || rpm -q eg-personal-management-system-comfortcomfort-plus || eg-personal-management-system-comfortcomfort-plus --version

2. UPGRADE to 16.1.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade eg-personal-management-system-comfortcomfort-plus

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade eg-personal-management-system-comfortcomfort-plus

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 15.1.0 (Debian / Ubuntu)

apt-cache madison eg-personal-management-system-comfortcomfort-plus sudo apt install eg-personal-management-system-comfortcomfort-plus=<VERSION_BEFORE_15.1.0> sudo apt-mark hold eg-personal-management-system-comfortcomfort-plus

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list eg-personal-management-system-comfortcomfort-plus sudo dnf downgrade eg-personal-management-system-comfortcomfort-plus-<VERSION_BEFORE_15.1.0> sudo dnf versionlock add eg-personal-management-system-comfortcomfort-plus

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-2023-33387?

eg personal-management system comfort\/comfort plus: upgrade to 16.1.1. Exact commands for each OS are on this page.

Is CVE-2023-33387 being exploited?

CVE-2023-33387 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-2023-33387 affect?

CVE-2023-33387 affects eg personal-management system comfort\/comfort plus. Severity is medium (CVSS 6.1). A reflected cross-site scripting (XSS) vulnerability in DATEV eG Personal-Management System Comfort/Comfort Plus v15.1.0 to v16.1.1 P4 allows attackers to steal targeted users' login data by sending a crafted link.

How urgent is CVE-2023-33387?

Priority 32/100. No elevated risk signals yet.

References

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