CVE-2026-90939

novel-plus through 5.3.3 Missing Authorization on the Admin /sys/user/list Endpoint

Published Sep 14, 2026 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Description
novel-plus through 5.3.3 contains an information disclosure vulnerability in the /sys/user/list endpoint that lacks proper permission annotations. Authenticated attackers can retrieve password hashes and personal data including email addresses and phone numbers for users within their data scope, enabling offline hash cracking and account takeover.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description novel-plus through 5.3.3 contains an information disclosure vulnerability in the /sys/user/list endpoint that lacks proper permission annotations. Authenticated attackers can retrieve password hashes and personal data including email addresses and phone numbers for users within their data scope, enabling offline hash cracking and account takeover.
Title novel-plus through 5.3.3 Missing Authorization on the Admin /sys/user/list Endpoint
First Time appeared Xxyopen
Xxyopen novel-plus
Weaknesses CWE-862
CPEs cpe:2.3:a:xxyopen:novel-plus:*:*:*:*:*:*:*:*
Vendors & Products Xxyopen
Xxyopen novel-plus
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 24, 2026, 2:22 PM
Reserved
Sep 14, 2026, 11:34 AM
Status
Deferred
Published
Sep 14, 2026, 2:17 PM
Modified
Sep 23, 2026, 5:17 PM