CVE-2020-36900: All-Dynamics Digital Signage System 2.0.2 contains a cross-site request forgery vulnerability that allows atta

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HIGH 8.8DOWNGRADE

CVE-2020-36900 is a high-severity flaw (CVSS 8.8) affecting digital signage system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

All-Dynamics Digital Signage System 2.0.2 contains a cross-site request forgery vulnerability that allows attackers to create administrative users without proper request validation. Attackers can craft a malicious web page that automatically submits forms to create a new user with global administrative privileges when a logged-in user visits the page.

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	0.3% (top 80%)
CISA exploited list	No
Weakness	CWE-352
Published	2025-12-10
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: all-dynamics

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

Am I affected?

Timeline

2025-12-10 21:16 UTCPublished CVE record published
2026-06-17 03:16 UTCUpdated Record last modified

all-dynamics digital signage system DOWNGRADE

Affected: 2.0.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0.2

1. Check installed version

apt-cache policy digital-signage-system || rpm -q digital-signage-system || digital-signage-system --version

2. No fixed release: DOWNGRADE to a release before 2.0.2 (Debian / Ubuntu)

apt-cache madison digital-signage-system sudo apt install digital-signage-system=<VERSION_BEFORE_2.0.2> sudo apt-mark hold digital-signage-system

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

dnf --showduplicates list digital-signage-system sudo dnf downgrade digital-signage-system-<VERSION_BEFORE_2.0.2> sudo dnf versionlock add digital-signage-system

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-2020-36900?

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

Is CVE-2020-36900 being exploited?

CVE-2020-36900 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-2020-36900 affect?

CVE-2020-36900 affects digital signage system. Severity is high (CVSS 8.8). All-Dynamics Digital Signage System 2.0.2 contains a cross-site request forgery vulnerability that allows attackers to create administrative users without proper request validation. Attackers can craft a malicious web page that automaticall

How urgent is CVE-2020-36900?

Priority 41/100. High severity; Public exploit reference

References

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