Description
Simple Admin Core through 1.8.7 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge super administrator tokens by using the hard-coded Auth.AccessSecret in api/etc/core.yaml. Attackers can sign a JWT with the public secret and roleId claim 001 to gain full administrative control over users, roles, menus, API authorities, configuration and tokens.
References5
- github.com/suyuan32/simple-admin-core/blob/v1.8.7/api/etc/core.…
- github.com/suyuan32/simple-admin-core/pull/382
- hackmd.io/@hieuPenguinnn/simple-admin-core-hardcoded-jwt-access…
- www.vulncheck.com/advisories/simple-admin-core-through-1.8.7-ha…
- hackmd.io/@hieuPenguinnn/simple-admin-core-hardcoded-jwt-access…
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 4.0
-
9.3
CRITICAL
Score source: CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 1% percentile: 48 · as of 10 November 2026
- CWE
- CWE-321
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