CVE-2025-67842Public exploitNetwork attack vector

Cross-tenant XSS via unscoped static asset routing

Published Dec 19, 2025 · Updated Dec 19, 2025

Cross-site scripting in Mintlify Platform before 2025-11-15 allows remote authenticated users to execute script on another tenant's domain. The /_mintlify/static/[subdomain] route trusted its subdomain parameter, so it returned an attacker's uploaded script-bearing SVG under a victim documentation origin. Exploitation requires control of a Mintlify tenant and a victim opening the crafted asset URL; credentials are exposed when custom documentation origins share broadly scoped cookies or local storage.

CVSS severity6.4
Medium
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Cross-site scripting in Mintlify Platform before 2025-11-15 allows remote authenticated users to execute script on another tenant's domain. The /_mintlify/static/[subdomain] route trusted its subdomain parameter, so it returned an attacker's uploaded script-bearing SVG under a victim documentation origin. Exploitation requires control of a Mintlify tenant and a victim opening the crafted asset URL; credentials are exposed when custom documentation origins share broadly scoped cookies or local storage.

The record

CVE
CVE-2025-67842
Published
Dec 19, 2025
Updated
Dec 19, 2025
Vendor
Mintlify
Product
Mintlify Platform
Classifications
CWE-829, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 19, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 19, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2025-11-15

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Mintlify · Mintlify Platformversion=0 <2025-11-15

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
6.4MITRECVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-829Inclusion of Functionality from Untrusted Control Sphere
T1189Drive-by Compromise

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo