CVE-2018-1000548: Umlet version < 14.3 contains a XML External Entity (XXE) vulnerability in File parsing that can result in dis

Q: How do I fix CVE-2018-1000548?

umlet: upgrade to 14.3. Exact commands for each OS are on this page.

Q: Is CVE-2018-1000548 being exploited?

CVE-2018-1000548 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-2018-1000548 affect?

CVE-2018-1000548 affects umlet. Severity is high (CVSS 7.8). Umlet version < 14.3 contains a XML External Entity (XXE) vulnerability in File parsing that can result in disclosure of confidential data, denial of service, server side request forgery. This attack appear to be exploitable via Specially c

Q: How urgent is CVE-2018-1000548?

Priority 50/100. High severity; Public exploit reference

This month

HIGH 7.8UPGRADE

CVE-2018-1000548 is a high-severity flaw (CVSS 7.8) affecting umlet. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Umlet version < 14.3 contains a XML External Entity (XXE) vulnerability in File parsing that can result in disclosure of confidential data, denial of service, server side request forgery. This attack appear to be exploitable via Specially crafted UXF file. This vulnerability appears to have been fixed in 14.3.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-611
Published	2018-06-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: umlet

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

Am I affected?

Timeline

2018-06-26 16:29 UTCPublished CVE record published
2026-06-17 01:32 UTCUpdated Record last modified

umlet umlet UPGRADE

Affected: < 14.3

Fixed in: 14.3

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 14.3 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade umlet

Note

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

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-2018-1000548?

umlet: upgrade to 14.3. Exact commands for each OS are on this page.

Is CVE-2018-1000548 being exploited?

CVE-2018-1000548 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-2018-1000548 affect?

CVE-2018-1000548 affects umlet. Severity is high (CVSS 7.8). Umlet version < 14.3 contains a XML External Entity (XXE) vulnerability in File parsing that can result in disclosure of confidential data, denial of service, server side request forgery. This attack appear to be exploitable via Specially c

How urgent is CVE-2018-1000548?

Priority 50/100. High severity; Public exploit reference

References

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