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.
PUBLISHED5.2CWE-287x_open-source
simstudioai sim CRON Secret internal.ts improper authentication
Problem type
Affected products
simstudioai
sim
0.5.0 - AFFECTED
0.5.1 - AFFECTED
0.5.2 - AFFECTED
0.5.3 - AFFECTED
0.5.4 - AFFECTED
0.5.5 - AFFECTED
0.5.6 - AFFECTED
0.5.7 - AFFECTED
0.5.8 - AFFECTED
0.5.9 - AFFECTED
0.5.10 - AFFECTED
0.5.11 - AFFECTED
0.5.12 - AFFECTED
0.5.13 - AFFECTED
0.5.14 - AFFECTED
0.5.15 - AFFECTED
0.5.16 - AFFECTED
0.5.17 - AFFECTED
0.5.18 - AFFECTED
0.5.19 - AFFECTED
0.5.20 - AFFECTED
0.5.21 - AFFECTED
0.5.22 - AFFECTED
0.5.23 - AFFECTED
0.5.24 - AFFECTED
0.5.25 - AFFECTED
0.5.26 - AFFECTED
0.5.27 - AFFECTED
References
VDB-338430 | simstudioai sim CRON Secret internal.ts improper authentication
https://vuldb.com/?id.338430
VDB-338430 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/?ctiid.338430
Submit #710255 | https://github.com/simstudioai https://github.com/simstudioai/sim ≤ v0.5.21 Authentication Bypass by Primary Weakness
https://vuldb.com/?submit.710255
gist.github.com
https://gist.github.com/H2u8s/c533741e1b36f6245d41cace89a7f4d2
github.com
https://github.com/simstudioai/sim/pull/2343
gist.github.com
https://gist.github.com/H2u8s/c533741e1b36f6245d41cace89a7f4d2#-steps-to-reproduce
github.com
https://github.com/simstudioai/sim/commit/e359dc2946b12ed5e45a0ec9c95ecf91bd18502a
JSON source
https://cveawg.mitre.org/api/cve/CVE-2025-15099Click to expand
{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-15099",
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"dateUpdated": "2025-12-26T15:04:35.405Z",
"dateReserved": "2025-12-25T16:18:38.982Z",
"datePublished": "2025-12-26T04:02:07.111Z",
"state": "PUBLISHED"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB",
"dateUpdated": "2025-12-26T04:02:07.111Z"
},
"title": "simstudioai sim CRON Secret internal.ts improper authentication",
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"affected": [
{
"vendor": "simstudioai",
"product": "sim",
"modules": [
"CRON Secret Handler"
],
"versions": [
{
"version": "0.5.0",
"status": "affected"
},
{
"version": "0.5.1",
"status": "affected"
},
{
"version": "0.5.2",
"status": "affected"
},
{
"version": "0.5.3",
"status": "affected"
},
{
"version": "0.5.4",
"status": "affected"
},
{
"version": "0.5.5",
"status": "affected"
},
{
"version": "0.5.6",
"status": "affected"
},
{
"version": "0.5.7",
"status": "affected"
},
{
"version": "0.5.8",
"status": "affected"
},
{
"version": "0.5.9",
"status": "affected"
},
{
"version": "0.5.10",
"status": "affected"
},
{
"version": "0.5.11",
"status": "affected"
},
{
"version": "0.5.12",
"status": "affected"
},
{
"version": "0.5.13",
"status": "affected"
},
{
"version": "0.5.14",
"status": "affected"
},
{
"version": "0.5.15",
"status": "affected"
},
{
"version": "0.5.16",
"status": "affected"
},
{
"version": "0.5.17",
"status": "affected"
},
{
"version": "0.5.18",
"status": "affected"
},
{
"version": "0.5.19",
"status": "affected"
},
{
"version": "0.5.20",
"status": "affected"
},
{
"version": "0.5.21",
"status": "affected"
},
{
"version": "0.5.22",
"status": "affected"
},
{
"version": "0.5.23",
"status": "affected"
},
{
"version": "0.5.24",
"status": "affected"
},
{
"version": "0.5.25",
"status": "affected"
},
{
"version": "0.5.26",
"status": "affected"
},
{
"version": "0.5.27",
"status": "affected"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "Improper Authentication",
"cweId": "CWE-287",
"type": "CWE"
}
]
}
],
"references": [
{
"url": "https://vuldb.com/?id.338430",
"name": "VDB-338430 | simstudioai sim CRON Secret internal.ts improper authentication",
"tags": [
"vdb-entry",
"technical-description"
]
},
{
"url": "https://vuldb.com/?ctiid.338430",
"name": "VDB-338430 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
]
},
{
"url": "https://vuldb.com/?submit.710255",
"name": "Submit #710255 | https://github.com/simstudioai https://github.com/simstudioai/sim ≤ v0.5.21 Authentication Bypass by Primary Weakness",
"tags": [
"third-party-advisory"
]
},
{
"url": "https://gist.github.com/H2u8s/c533741e1b36f6245d41cace89a7f4d2",
"tags": [
"related"
]
},
{
"url": "https://github.com/simstudioai/sim/pull/2343",
"tags": [
"issue-tracking"
]
},
{
"url": "https://gist.github.com/H2u8s/c533741e1b36f6245d41cace89a7f4d2#-steps-to-reproduce",
"tags": [
"exploit"
]
},
{
"url": "https://github.com/simstudioai/sim/commit/e359dc2946b12ed5e45a0ec9c95ecf91bd18502a",
"tags": [
"patch"
]
}
],
"metrics": [
{},
{
"cvssV3_1": {
"version": "3.1",
"vectorString": "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",
"baseScore": 7.3,
"baseSeverity": "HIGH"
}
},
{
"cvssV3_0": {
"version": "3.0",
"vectorString": "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",
"baseScore": 7.3,
"baseSeverity": "HIGH"
}
},
{
"cvssV2_0": {
"version": "2.0",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C",
"baseScore": 7.5
}
}
],
"timeline": [
{
"time": "2025-12-25T00:00:00.000Z",
"lang": "en",
"value": "Advisory disclosed"
},
{
"time": "2025-12-25T01:00:00.000Z",
"lang": "en",
"value": "VulDB entry created"
},
{
"time": "2025-12-25T17:23:43.000Z",
"lang": "en",
"value": "VulDB entry last update"
}
],
"credits": [
{
"lang": "en",
"value": "28Hus (VulDB User)",
"type": "reporter"
}
],
"tags": [
"x_open-source"
]
},
"adp": [
{
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2025-12-26T15:04:35.405Z"
},
"title": "CISA ADP Vulnrichment",
"references": [
{
"url": "https://gist.github.com/H2u8s/c533741e1b36f6245d41cace89a7f4d2#-steps-to-reproduce",
"tags": [
"exploit"
]
}
],
"metrics": [
{}
]
}
]
}
}