CVE-2025-3807: A vulnerability, which was classified as critical, was found in zhenfeng13 My-BBS 1.0

Routine

MEDIUM 6.3DOWNGRADE

CVE-2025-3807 is a medium-severity flaw (CVSS 6.3) affecting my-bbs. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability, which was classified as critical, was found in zhenfeng13 My-BBS 1.0. This affects the function Upload of the file src/main/java/com/my/bbs/controller/common/UploadController.java of the component Endpoint. The manipulation leads to unrestricted upload. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 54%)
CISA exploited list	No
Weakness	CWE-284, CWE-434
Published	2025-04-19
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: zhenfeng13

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

Am I affected?

Timeline

2025-04-19 17:15 UTCPublished CVE record published
2026-06-17 09:20 UTCUpdated Record last modified

zhenfeng13 my-bbs DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy my-bbs || rpm -q my-bbs || my-bbs --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison my-bbs sudo apt install my-bbs=<VERSION_BEFORE_1.0> sudo apt-mark hold my-bbs

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

dnf --showduplicates list my-bbs sudo dnf downgrade my-bbs-<VERSION_BEFORE_1.0> sudo dnf versionlock add my-bbs

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-2025-3807?

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

Is CVE-2025-3807 being exploited?

CVE-2025-3807 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-2025-3807 affect?

CVE-2025-3807 affects my-bbs. Severity is medium (CVSS 6.3). A vulnerability, which was classified as critical, was found in zhenfeng13 My-BBS 1.0. This affects the function Upload of the file src/main/java/com/my/bbs/controller/common/UploadController.java of the component Endpoint. The manipulation

How urgent is CVE-2025-3807?

Priority 38/100. Public exploit reference

Software pages

Java vulnerabilities

Related CVEs

CVE-2025-3808 MEDIUM 4.3 DOWNGRADE A vulnerability has been found in zhenfeng13 My-BBS 1.0 and classified as problematic

References

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