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CVE-2025-15099

31
FAUCET Score

CVE-2025-15099 is a critical improper authentication vulnerability affecting simstudioai sim up to version 0.5.27, specifically within the CRON Secret Handler component. This flaw allows remote attackers to bypass authentication by manipulating the INTERNAL_API_SECRET argument. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While the exploit is publicly available, it is not currently listed in CISA's KEV catalog, and there is minimal community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.5.27CPE matchmatch criteria
cpe:2.3:a:sim:sim:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

5.5MEDIUM

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/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

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
LOW
VS Integrity
LOW
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.74%
Probability of exploitation in next 30 days
EPSS Percentile
50.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0074 is in the 34th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

gist.github.com / H2u8s/c533741e1b36f6245d41cace89a7f4d2
ExploitThird Party Advisory
gist.github.com / H2u8s/c533741e1b36f6245d41cace89a7f4d2
ExploitThird Party Advisory
github.com / simstudioai/sim/commit/e359dc2946b12ed5e45a0ec9c95ecf91bd18502a
Patch
github.com / simstudioai/sim/pull/2343
ExploitIssue Tracking
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry