CVE-2021-30147: DMA Softlab Radius Manager 4.4.0 allows CSRF with impacts such as adding new manager accounts via admin.php.

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HIGH 8.8DOWNGRADE

CVE-2021-30147 is a high-severity flaw (CVSS 8.8) affecting radius manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

DMA Softlab Radius Manager 4.4.0 allows CSRF with impacts such as adding new manager accounts via admin.php.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	3.5% (top 11%)
CISA exploited list	No
Weakness	CWE-352
Published	2021-04-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: dmasoftlab

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

Am I affected?

Timeline

2021-04-07 03:15 UTCPublished CVE record published
2026-06-17 03:49 UTCUpdated Record last modified

dmasoftlab radius manager DOWNGRADE

Affected: 4.4.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.4.0

1. Check installed version

apt-cache policy radius-manager || rpm -q radius-manager || radius-manager --version

2. No fixed release: DOWNGRADE to a release before 4.4.0 (Debian / Ubuntu)

apt-cache madison radius-manager sudo apt install radius-manager=<VERSION_BEFORE_4.4.0> sudo apt-mark hold radius-manager

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

dnf --showduplicates list radius-manager sudo dnf downgrade radius-manager-<VERSION_BEFORE_4.4.0> sudo dnf versionlock add radius-manager

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: DMA Radius Manager 4.4.0 - Cross-Site Request Forgery (CSRF)

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-2021-30147?

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

Is CVE-2021-30147 being exploited?

CVE-2021-30147 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-2021-30147 affect?

CVE-2021-30147 affects radius manager. Severity is high (CVSS 8.8). DMA Softlab Radius Manager 4.4.0 allows CSRF with impacts such as adding new manager accounts via admin.php.

How urgent is CVE-2021-30147?

Priority 58/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2010-4275 LOW 3.5 DOWNGRADE Multiple cross-site scripting (XSS) vulnerabilities in Radius Manager 3.8.0 allow remote authenticated adminis

References

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