CVE-2023-40274

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-08-14 · updated 2026-06-17
Weakness: CWE-22

Description

An issue was discovered in zola 0.13.0 through 0.17.2. The custom implementation of a web server, available via the "zola serve" command, allows directory traversal. The handle_request function, used by the server to process HTTP requests, does not account for sequences of special path control characters (../) in the URL when serving a file, which allows one to escape the webroot of the server and read arbitrary files from the filesystem.

Affected products

Getzola Zola: from 0.13.0 through 0.17.2

References

https://github.com/getzola/zola/issues/2257
https://github.com/getzola/zola/pull/2258
https://github.com/getzola/zola/issues/2257
https://github.com/getzola/zola/pull/2258

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