{"id":"CVE-2026-78189","published":"2026-10-31T15:16:54.003","lastModified":"2026-10-31T15:16:54.003","description":"WebDyne versions from 3.007 before 3.022 for Perl execute .psp files outside the document root via path traversal in the PSGI API route fallback.\n\nWhen a request matches no file, the PSGI handler retries it as an API route through api_filename. That keeps .. segments in the request path and only checks that the joined path starts with the document root, which a request for /../private passes.\n\nA remote attacker can run the embedded Perl in any .psp file the server can read, such as one uploaded to a directory outside the document root.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-22"],"vendors":[],"products":[],"references":[{"url":"https://metacpan.org/release/ASPEER/WebDyne-3.022/changes","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}