CVE-2024-6523: A vulnerability was found in ZKTeco BioTime up to 9.5.2

Routine

LOW 3.5UPGRADE

CVE-2024-6523 is a low-severity flaw (CVSS 3.5) affecting biotime. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in ZKTeco BioTime up to 9.5.2. It has been classified as problematic. Affected is an unknown function of the component system-group-add Handler. The manipulation of the argument user with the input <script>alert('XSS')</script> leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-270366 is the identifier assigned to this vulnerabili

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	3.5 (Low)
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	2024-07-05
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: zkteco

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

Am I affected?

Timeline

2024-07-05 11:15 UTCPublished CVE record published
2026-06-17 08:18 UTCUpdated Record last modified

zkteco biotime UPGRADE

Affected: >= 8.5 and <= 9.5.2

Fixed in: newer than 9.5.2

Safe to downgrade to: a release before 8.5

1. Check installed version

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

2. UPGRADE to newer than 9.5.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade biotime

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade biotime

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 8.5 (Debian / Ubuntu)

apt-cache madison biotime sudo apt install biotime=<VERSION_BEFORE_8.5> sudo apt-mark hold biotime

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

dnf --showduplicates list biotime sudo dnf downgrade biotime-<VERSION_BEFORE_8.5> sudo dnf versionlock add biotime

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-2024-6523?

biotime: upgrade to newer than 9.5.2. Exact commands for each OS are on this page.

Is CVE-2024-6523 being exploited?

CVE-2024-6523 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-2024-6523 affect?

CVE-2024-6523 affects biotime. Severity is low (CVSS 3.5). A vulnerability was found in ZKTeco BioTime up to 9.5.2. It has been classified as problematic. Affected is an unknown function of the component system-group-add Handler. The manipulation of the argument user with the input <script>alert('X

How urgent is CVE-2024-6523?

Priority 28/100. Public exploit reference

Related CVEs

CVE-2023-51142 HIGH 7.5 DOWNGRADE An issue in ZKTeco BioTime v.8.5.4 and before allows a remote attacker to obtain sensitive information.
CVE-2023-51141 MEDIUM 6.5 DOWNGRADE An issue in ZKTeko BioTime v.8.5.4 and before allows a remote attacker to obtain sensitive information via the
CVE-2024-13966 HIGH 7.3 UPGRADE ZKTeco BioTime allows unauthenticated attackers to enumerate usernames and log in as any user with a password

References

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