CVE-2021-24638: OMGF < 4.5.4 - Unauthenticated Path Traversal in REST API

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-09-20 · updated 2026-06-17
Weakness: CWE-22

Description

The OMGF WordPress plugin before 4.5.4 does not escape or validate the handle parameter of the REST API, which allows unauthenticated users to perform path traversal and overwrite arbitrary CSS file with Google Fonts CSS, or download fonts uploaded on Google Fonts website.

Affected products

OMGF | Host Google Fonts Locally: before 4.5.4 — fixed in 4.5.4

How to fix

Upgrade to a fixed version: OMGF | Host Google Fonts Locally 4.5.4. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/c783a746-f1fe-4d68-9d0a-477de5dbb35c
https://wpscan.com/vulnerability/c783a746-f1fe-4d68-9d0a-477de5dbb35c

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