Paisa before 0.7.8 contains a path traversal vulnerability in the GetFile, GetSheet, DeleteBackups, and DeleteSheetBackups handlers that lets unauthenticated attackers read files and delete backups through ../ sequences in file names. Attackers can send crafted names to the editor file and delete_backups endpoints to read any server-readable file and remove backup files outside the journal or sheets directory.
https://www.vulncheck.com/advisories/paisa-before-0.7.8-path-traversal-via-editor-and-sheet-api
https://github.com/ananthakumaran/paisa/releases/tag/v0.7.8
https://github.com/ananthakumaran/paisa/issues/420
https://github.com/ananthakumaran/paisa/commit/035949351f7c0d0f90ecf767aa1e28b4d5a0ae31
https://github.com/ananthakumaran/paisa/blob/v0.7.7/internal/server/editor.go#L49-L70
Published: 2026-10-25
Updated: 2026-10-25
Base Score: 8.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:P/A:N
Severity: High
Base Score: 8.2
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Severity: High
Base Score: 8.8
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Severity: High