CVE-2023-39853: SQL Injection vulnerability in Dzzoffice version 2.01, allows remote attackers to obtain sensitive information

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MEDIUM 6.5DOWNGRADE

CVE-2023-39853 is a medium-severity flaw (CVSS 6.5) affecting dzzoffice. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL Injection vulnerability in Dzzoffice version 2.01, allows remote attackers to obtain sensitive information via the doobj and doevent parameters in the Network Disk backend module.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.7% (top 45%)
CISA exploited list	No
Weakness	CWE-89
Published	2024-01-06
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: dzzoffice

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

Am I affected?

Timeline

2024-01-06 04:15 UTCPublished CVE record published
2026-06-17 06:12 UTCUpdated Record last modified

dzzoffice dzzoffice DOWNGRADE

Affected: 2.01

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.01

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.01 (Debian / Ubuntu)

apt-cache madison dzzoffice sudo apt install dzzoffice=<VERSION_BEFORE_2.01> sudo apt-mark hold dzzoffice

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

dnf --showduplicates list dzzoffice sudo dnf downgrade dzzoffice-<VERSION_BEFORE_2.01> sudo dnf versionlock add dzzoffice

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-2023-39853?

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

Is CVE-2023-39853 being exploited?

CVE-2023-39853 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-2023-39853 affect?

CVE-2023-39853 affects dzzoffice. Severity is medium (CVSS 6.5). SQL Injection vulnerability in Dzzoffice version 2.01, allows remote attackers to obtain sensitive information via the doobj and doevent parameters in the Network Disk backend module.

How urgent is CVE-2023-39853?

Priority 41/100. Public exploit reference

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References

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