Nging through 5.3.5 contains an information disclosure vulnerability that allows any authenticated backend user to list host directories by abusing the public-tagged /user/autocomplete_path endpoint. Low-privileged users without file-manager permission can supply arbitrary paths in the query parameter to enumerate directories readable by the Nging process and confirm specific files exist.
https://hackmd.io/@hieuPenguinnn/nging-user-autocomplete-path-filesystem-disclosure
https://github.com/admpub/nging/issues/831
https://github.com/admpub/nging/commit/6434d026f668bdb5d59db658036fd6febbd29c0c
https://github.com/admpub/nging/blob/v5.3.5/application/handler/user/profile.go#L136-L157
https://github.com/admpub/nging/blob/v5.3.5/application/handler/user/init.go#L28-L42
Published: 2026-10-30
Updated: 2026-10-30
Base Score: 4
Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N
Severity: Medium
Base Score: 4.3
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Severity: Medium
Base Score: 5.3
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Severity: Medium
EPSS: 0.00354