CVE-2024-49366 — Nginx UI's json field can construct a directory traversal payload, causing arbitrary files to be written

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HIGH

Nginx UI's json field can construct a directory traversal payload, causing arbitrary files to be written

Published Oct 21, 2024

7.7

HIGH

CVSS 4.0

EPSS 0.60%

Description

Nginx UI is a web user interface for the Nginx web server. Nginx UI v2.0.0-beta.35 and earlier gets the value from the json field without verification, and can construct a value value in the form of `../../`. Arbitrary files can be written to the server, which may result in loss of permissions. Version 2.0.0-beta.26 fixes the issue.

Affected products

Vendor 0xJacky Product Nginx-UI Default
n/a
- Version
  < 2.0.0-beta.36
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

0xJacky

Nginx-UI

n/a

Version	Status	Constraints
< 2.0.0-beta.36	affected	-

Vendor Nginxui Product Nginx UI Default
n/a
- Version
  0
  Status
  affected
  Constraints
  <2.0.0-beta.36

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Nginxui

Nginx UI

n/a

Version	Status	Constraints
0	affected	<2.0.0-beta.36

Remediation

No remediation recorded yet.

Metrics

0.60% 0.00595

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00595

Score over time

2024–2026

EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v3
EPSS v4
EPSS v5

Table of values (5 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.60% (0.00595)	46.47th	v5 (v2026.06.15)
Jun 15, 2026	0.58% (0.00579)	42.88th	v5 (v2026.06.15)
Mar 17, 2025	0.07% (0.00073)	19.49th	v4 (v2025.03.14)
Dec 12, 2024	0.05% (0.00048)	19.93th	v3 (v2023.03.01)
Oct 22, 2024	0.04% (0.00044)	11.28th	v3 (v2023.03.01)

Weaknesses (1)

CWE-22

Path Traversal

References (2)

https://github.com/0xJacky/nginx-ui/releases/tag/v2.0.0-beta.36
x_refsource_MISCRelease Notes
https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-prv4-rx44-f7jr
x_refsource_CONFIRMExploitVendor Advisory

Link	Providers	Tags
https://github.com/0xJacky/nginx-ui/releases/tag/v2.0.0-beta.36		x_refsource_MISCRelease Notes
https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-prv4-rx44-f7jr		x_refsource_CONFIRMExploitVendor Advisory