CVE-2025-15099

HIGH

sim < 0.5.27 - Improper Authentication via INTERNAL_API_SECRET Manipulation

Title source: llm
STIX 2.1

Description

A vulnerability was identified in simstudioai sim up to 0.5.27. This vulnerability affects unknown code of the file apps/sim/lib/auth/internal.ts of the component CRON Secret Handler. The manipulation of the argument INTERNAL_API_SECRET leads to improper authentication. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The identifier of the patch is e359dc2946b12ed5e45a0ec9c95ecf91bd18502a. Applying a patch is the recommended action to fix this issue.

References (7)

Core 7
Core References
Third Party Advisory, VDB Entry vdb-entry technical-description
https://vuldb.com/?id.338430
Permissions Required, VDB Entry signature permissions-required
https://vuldb.com/?ctiid.338430
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.710255
Exploit, Issue Tracking issue-tracking
https://github.com/simstudioai/sim/pull/2343

Scores

CVSS v3 7.3
EPSS 0.0073
EPSS Percentile 49.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-287
Status published
Products (1)
sim/sim < 0.5.27
Published Dec 26, 2025
Tracked Since Feb 18, 2026