CVE-2022-50937: Ametys CMS v4.4.1 contains a persistent cross-site scripting vulnerability in the link directory's input field

Routine

MEDIUM 6.1DOWNGRADE

CVE-2022-50937 is a medium-severity flaw (CVSS 6.1) affecting ametys. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Ametys CMS v4.4.1 contains a persistent cross-site scripting vulnerability in the link directory's input fields for external links. Attackers can inject malicious script code in link text and descriptions to execute persistent attacks that compromise user sessions and manipulate application modules.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 75%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-01-13
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: ametys

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

Am I affected?

Timeline

2026-01-13 23:15 UTCPublished CVE record published
2026-06-17 05:24 UTCUpdated Record last modified

ametys ametys DOWNGRADE

Affected: 4.4.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.4.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.4.1 (Debian / Ubuntu)

apt-cache madison ametys sudo apt install ametys=<VERSION_BEFORE_4.4.1> sudo apt-mark hold ametys

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

dnf --showduplicates list ametys sudo dnf downgrade ametys-<VERSION_BEFORE_4.4.1> sudo dnf versionlock add ametys

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-2022-50937?

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

Is CVE-2022-50937 being exploited?

CVE-2022-50937 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-2022-50937 affect?

CVE-2022-50937 affects ametys. Severity is medium (CVSS 6.1). Ametys CMS v4.4.1 contains a persistent cross-site scripting vulnerability in the link directory's input fields for external links. Attackers can inject malicious script code in link text and descriptions to execute persistent attacks that

How urgent is CVE-2022-50937?

Priority 33/100. Public exploit reference

References

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