CVE-2020-15600: An issue was discovered in CMSUno before 1.6.1

Q: How do I fix CVE-2020-15600?

cmsuno: upgrade to 1.6.1. Exact commands for each OS are on this page.

Q: Is CVE-2020-15600 being exploited?

CVE-2020-15600 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-15600 affect?

CVE-2020-15600 affects cmsuno. Severity is medium (CVSS 6.5). An issue was discovered in CMSUno before 1.6.1. uno.php allows CSRF to change the admin password.

Q: How urgent is CVE-2020-15600?

Priority 48/100. Public exploit reference

This month

MEDIUM 6.5UPGRADE

CVE-2020-15600 is a medium-severity flaw (CVSS 6.5) affecting cmsuno. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in CMSUno before 1.6.1. uno.php allows CSRF to change the admin password.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Weakness	CWE-352
Published	2020-07-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: cmsuno project

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

Am I affected?

Timeline

2020-07-07 22:15 UTCPublished CVE record published
2026-06-17 02:56 UTCUpdated Record last modified

cmsuno project cmsuno UPGRADE

Affected: < 1.6.1

Fixed in: 1.6.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.6.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade cmsuno

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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: CMSUno 1.6 - Cross-Site Request Forgery (Change Admin Password)

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-2020-15600?

cmsuno: upgrade to 1.6.1. Exact commands for each OS are on this page.

Is CVE-2020-15600 being exploited?

CVE-2020-15600 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-2020-15600 affect?

CVE-2020-15600 affects cmsuno. Severity is medium (CVSS 6.5). An issue was discovered in CMSUno before 1.6.1. uno.php allows CSRF to change the admin password.

How urgent is CVE-2020-15600?

Priority 48/100. Public exploit reference

Software pages

PHP vulnerabilities

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CVE-2020-25557 HIGH 8.8 DOWNGRADE In CMSuno 1.6.2, an attacker can inject malicious PHP code as a "username" while changing his/her username & p
CVE-2020-25538 HIGH 8.8 DOWNGRADE An authenticated attacker can inject malicious code into "lang" parameter in /uno/central.php file in CMSuno 1

References

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