CVE-2025-7100: A vulnerability was found in BoyunCMS up to 1.4.20 and classified as critical

Routine

MEDIUM 6.3UPGRADE

CVE-2025-7100 is a medium-severity flaw (CVSS 6.3) affecting boyuncms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in BoyunCMS up to 1.4.20 and classified as critical. Affected by this issue is some unknown functionality of the file /application/user/controller/Index.php. The manipulation of the argument image leads to unrestricted upload. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 71%)
CISA exploited list	No
Weakness	CWE-284, CWE-434
Published	2025-07-07
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: boyuncms project

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

Am I affected?

Timeline

2025-07-07 01:15 UTCPublished CVE record published
2026-06-17 10:04 UTCUpdated Record last modified

boyuncms project boyuncms UPGRADE

Affected: >= 1.4 and <= 1.4.20

Fixed in: newer than 1.4.20

Safe to downgrade to: a release before 1.4

1. Check installed version

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

2. UPGRADE to newer than 1.4.20 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade boyuncms

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 1.4 (Debian / Ubuntu)

apt-cache madison boyuncms sudo apt install boyuncms=<VERSION_BEFORE_1.4> sudo apt-mark hold boyuncms

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

dnf --showduplicates list boyuncms sudo dnf downgrade boyuncms-<VERSION_BEFORE_1.4> sudo dnf versionlock add boyuncms

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-2025-7100?

boyuncms: upgrade to newer than 1.4.20. Exact commands for each OS are on this page.

Is CVE-2025-7100 being exploited?

CVE-2025-7100 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-2025-7100 affect?

CVE-2025-7100 affects boyuncms. Severity is medium (CVSS 6.3). A vulnerability was found in BoyunCMS up to 1.4.20 and classified as critical. Affected by this issue is some unknown functionality of the file /application/user/controller/Index.php. The manipulation of the argument image leads to unrestri

How urgent is CVE-2025-7100?

Priority 29/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

Related CVEs

CVE-2025-7103 MEDIUM 6.3 UPGRADE A vulnerability was found in BoyunCMS up to 1.4.20
CVE-2025-7102 MEDIUM 6.3 UPGRADE A vulnerability was found in BoyunCMS up to 1.4.20
CVE-2025-7101 MEDIUM 6.3 UPGRADE A vulnerability was found in BoyunCMS up to 1.4.20
CVE-2025-7099 MEDIUM 5.6 UPGRADE A vulnerability has been found in BoyunCMS up to 1.21 on PHP7 and classified as critical

References

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