CVE-2022-38339: Safe Software FME Server v2021.2.5, v2022.0.0.2 and below contains a cross-site scripting (XSS) vulnerability

This month

CRITICAL 9.6UPGRADE

CVE-2022-38339 is a critical-severity flaw (CVSS 9.6) affecting fme server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Safe Software FME Server v2021.2.5, v2022.0.0.2 and below contains a cross-site scripting (XSS) vulnerability which allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the login page.

Why this priority

Critical severity

A fixed release or distro patch exists.

Risk facts

CVSS score	9.6 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.6% (top 53%)
CISA exploited list	No
Weakness	CWE-79
Published	2022-09-19
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: safe

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

Am I affected?

Timeline

2022-09-19 22:15 UTCPublished CVE record published
2026-06-17 04:56 UTCUpdated Record last modified

safe fme server UPGRADE

Affected: < 2021.2.6 · >= 2022.0.0.0 and < 2022.0.1.1

Fixed in: 2021.2.6, 2022.0.1.1

Safe to downgrade to: a release before 2022.0.0.0

1. Check installed version

apt-cache policy fme-server || rpm -q fme-server || fme-server --version

2. UPGRADE to 2021.2.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade fme-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade fme-server

Note

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

3. If no update is available yet, DOWNGRADE to a release before 2022.0.0.0 (Debian / Ubuntu)

apt-cache madison fme-server sudo apt install fme-server=<VERSION_BEFORE_2022.0.0.0> sudo apt-mark hold fme-server

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list fme-server sudo dnf downgrade fme-server-<VERSION_BEFORE_2022.0.0.0> sudo dnf versionlock add fme-server

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-2022-38339?

fme server: upgrade to 2021.2.6, 2022.0.1.1. Exact commands for each OS are on this page.

Is CVE-2022-38339 being exploited?

CVE-2022-38339 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-2022-38339 affect?

CVE-2022-38339 affects fme server. Severity is critical (CVSS 9.6). Safe Software FME Server v2021.2.5, v2022.0.0.2 and below contains a cross-site scripting (XSS) vulnerability which allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the login page.

How urgent is CVE-2022-38339?

Priority 45/100. Critical severity

Related CVEs

CVE-2023-35801 HIGH 8.1 UPGRADE A directory traversal vulnerability in Safe Software FME Server before 2022.2.5 allows an attacker to bypass v
CVE-2022-38342 HIGH 8.5 UPGRADE Safe Software FME Server v2021.2.5, v2022.0.0.2 and below was discovered to contain a XML External Entity (XXE
CVE-2022-38341 HIGH 7.1 UPGRADE Safe Software FME Server v2021.2.5 and below does not employ server-side validation.
CVE-2022-38340 CRITICAL 9.1 UPGRADE Safe Software FME Server v2021.2.5, v2022.0.0.2 and below was discovered to contain a Path Traversal vulnerabi

References

← Back to latest CVEs