CVE-2025-15099

simstudioai sim CRON Secret internal.ts improper authentication

State: Published
Severity: 6.9 Medium
Published: Dec 26, 2025
Updated: Dec 26, 2025
Reserved: Dec 25, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	7.3 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C	VulDB
3.0	7.3 High	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C	VulDB
2.0	7.5 High	AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C	VulDB

Weaknesses

CWE-287 Improper Authentication

Affected Products

Product	Versions
simsimstudioai	0.5.0Affected 0.5.1Affected 0.5.2Affected 0.5.3Affected 0.5.4Affected 0.5.5Affected 0.5.6Affected 0.5.7Affected 0.5.8Affected 0.5.9Affected 0.5.10Affected 0.5.11Affected 0.5.12Affected 0.5.13Affected 0.5.14Affected 0.5.15Affected 0.5.16Affected 0.5.17Affected 0.5.18Affected 0.5.19Affected 0.5.20Affected 0.5.21Affected 0.5.22Affected 0.5.23Affected 0.5.24Affected and 3 more versions

References

VDB-338430 | simstudioai sim CRON Secret internal.ts improper authenticationvdb-entrytechnical-description
VDB-338430 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
Submit #710255 | https://github.com/simstudioai https://github.com/simstudioai/sim ≤ v0.5.21 Authentication Bypass by Primary Weaknessthird-party-advisory
https://gist.github.com/H2u8s/c533741e1b36f6245d41cace89a7f4d2related
https://github.com/simstudioai/sim/pull/2343issue-tracking
https://gist.github.com/H2u8s/c533741e1b36f6245d41cace89a7f4d2#-steps-to-reproduceexploit
https://github.com/simstudioai/sim/commit/e359dc2946b12ed5e45a0ec9c95ecf91bd18502apatch

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