CVE-2026-90581: cym1102 nginxWebUI autoUpdate MainController.autoUpdate code injection

Severity: medium (CVSS 6.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-13 · updated 2026-09-14
Weakness: CWE-74

Description

A vulnerability was determined in cym1102 nginxWebUI up to 4.4.2. This issue affects the function MainController.autoUpdate of the file /adminPage/main/autoUpdate. This manipulation of the argument url causes code injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.

Affected products

cym1102 nginxWebUI: 4.4.0, 4.4.1, 4.4.2

References

https://github.com/cym1102/nginxWebUI/
https://github.com/cym1102/nginxWebUI/issues/213
https://github.com/cym1102/nginxWebUI/pull/215
https://vuldb.com/cve/CVE-2026-90581
https://vuldb.com/submit/913328
https://vuldb.com/vuln/403166
https://vuldb.com/vuln/403166/cti

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