CVE-2018-1000548

Severity: high (CVSS 7.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-06-26 · updated 2026-06-17
Weakness: CWE-611

Description

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.

Affected products

Umlet: before 14.3 — fixed in 14.3

How to fix

Upgrade to a fixed version: Umlet 14.3. Check the vendor advisory for mitigations.

References

http://0dd.zone/2018/04/23/UMLet-XXE/
https://github.com/umlet/umlet/issues/500
http://0dd.zone/2018/04/23/UMLet-XXE/
https://github.com/umlet/umlet/issues/500

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