CVE-2018-20405

Severity: low (CVSS 2.7 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-12-23 · updated 2026-06-17
Weakness: CWE-639

Description

BigTree 4.3 allows full path disclosure via authenticated admin/news/ input that triggers a syntax error. NOTE: This has been disputed with the following reasoning: "The issue reported requires full developer level access to the content management system where cross site scripting is not an issue -- you already have full control of the CMS including running arbitrary PHP.

Affected products

Bigtreecms Bigtree: 4.3

References

https://github.com/bigtreecms/BigTree-CMS/issues/354
https://github.com/bigtreecms/BigTree-CMS/issues/354

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