CVE-2025-3256: A vulnerability was found in xujiangfei admintwo 1.0

Routine

MEDIUM 6.3DOWNGRADE

CVE-2025-3256 is a medium-severity flaw (CVSS 6.3) affecting admintwo. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in xujiangfei admintwo 1.0. It has been rated as critical. Affected by this issue is some unknown functionality of the file /user/updateSet. The manipulation of the argument email leads to improper access controls. The attack may be launched 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	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-266, CWE-284
Published	2025-04-04
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: xujiangfei

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

Am I affected?

Timeline

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

xujiangfei admintwo 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 admintwo || rpm -q admintwo || admintwo --version

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

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

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

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

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-2025-3256?

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

Is CVE-2025-3256 being exploited?

CVE-2025-3256 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-2025-3256 affect?

CVE-2025-3256 affects admintwo. Severity is medium (CVSS 6.3). A vulnerability was found in xujiangfei admintwo 1.0. It has been rated as critical. Affected by this issue is some unknown functionality of the file /user/updateSet. The manipulation of the argument email leads to improper access controls.

How urgent is CVE-2025-3256?

Priority 36/100. Public exploit reference

Related CVEs

CVE-2025-3257 MEDIUM 4.3 DOWNGRADE A vulnerability classified as problematic has been found in xujiangfei admintwo 1.0
CVE-2025-3255 MEDIUM 4.3 DOWNGRADE A vulnerability was found in xujiangfei admintwo 1.0
CVE-2025-3254 MEDIUM 6.3 DOWNGRADE A vulnerability was found in xujiangfei admintwo 1.0
CVE-2025-3253 LOW 3.5 DOWNGRADE A vulnerability was found in xujiangfei admintwo 1.0 and classified as problematic
CVE-2025-3252 LOW 3.5 DOWNGRADE A vulnerability has been found in xujiangfei admintwo 1.0 and classified as problematic

References

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