by Kastro
Paper/Archive/CVE-2026-107806

CVE-2026-107806

0xJacky nginx-ui — Nginx UI: Authenticated Remote Code Execution via Backup Restore App Config Overwrite

EPSS 0.6%public exploitCVSS 9.4
critical.is priorityof 100
48
CVSS 9.4 (CNA)9.4 / 10 × 3028.2Not in CISA KEV+300.0EPSS percentile 47.2.472 × 209.4Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

Nginx UI is a web user interface for the Nginx web server. From 2.3.8 until 2.5.0, an authenticated administrator with an active secure session can submit attacker-controlled portable backup key material and a matching manifest to POST /api/restore. The restore flow trusts the supplied key, decrypts attacker-controlled contents, and replaces the live app.ini, including protected nginx command settings such as TestConfigCmd. Triggering POST /api/nginx/test then executes the restored command in the Nginx UI runtime context, affecting confidentiality, integrity, and availability. This issue is fixed in version 2.5.0.

Affected

ProductAffectedFixed inSource
nginx-ui>= 2.3.8, < 2.5.0–CNA

Scores by source

GitHub_M (CNA)9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

exploitgithub.com/0xJacky/nginx-ui/security/advisories/GHSA-p393-cf76-4jmrrefgithub.com/0xJacky/nginx-ui/commit/a467ed652591fc0cd1b466a1ec751b493faef9f7refgithub.com/0xJacky/nginx-ui/releases/tag/v2.5.0