CVE-2025-25791: An arbitrary file upload vulnerability in the plugin installation feature of YZNCMS v2.0.1 allows attackers to

Routine

MEDIUM 4.4DOWNGRADE

CVE-2025-25791 is a medium-severity flaw (CVSS 4.4) affecting yzncms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An arbitrary file upload vulnerability in the plugin installation feature of YZNCMS v2.0.1 allows attackers to execute arbitrary code via uploading a crafted Zip file.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.4 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 85%)
CISA exploited list	No
Weakness	CWE-77
Published	2025-02-26
Last modified	2026-07-05

Publisher (CNA): MITRE · Vendor: yzncms

Last updated 2026-07-05 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-02-26 15:15 UTCPublished CVE record published
2026-07-05 01:21 UTCUpdated Record last modified

yzncms yzncms DOWNGRADE

Affected: 2.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.0.1 (Debian / Ubuntu)

apt-cache madison yzncms sudo apt install yzncms=<VERSION_BEFORE_2.0.1> sudo apt-mark hold yzncms

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

dnf --showduplicates list yzncms sudo dnf downgrade yzncms-<VERSION_BEFORE_2.0.1> sudo dnf versionlock add yzncms

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-2025-25791?

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

Is CVE-2025-25791 being exploited?

CVE-2025-25791 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-2025-25791 affect?

CVE-2025-25791 affects yzncms. Severity is medium (CVSS 4.4). An arbitrary file upload vulnerability in the plugin installation feature of YZNCMS v2.0.1 allows attackers to execute arbitrary code via uploading a crafted Zip file.

How urgent is CVE-2025-25791?

Priority 24/100. Public exploit reference

Related CVEs

CVE-2024-42939 MEDIUM 5.4 DOWNGRADE A cross-site scripting (XSS) vulnerability in the component /index/index.html of YZNCMS v1.4.2 allows attacker

References

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