CVE-2025-49126Public exploitNetwork attack vector

Session takeover via unencoded Swagger UI query

Published Jun 23, 2025 · Updated Jun 23, 2025

Reflected XSS in Visionatrix 1.5.0 through 2.5.0 allows remote attackers to take over user sessions through a crafted documentation link. The /docs/flows handler appends the user-controlled flows query to openapi_url and passes it unencoded into FastAPI's get_swagger_ui_html, placing it inside a script string. Exploitation requires a user to open the crafted link and lets injected JavaScript read application secrets through the victim's session.

CVSS severity8.8
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Visionatrix 1.5.0 through 2.5.0 allows remote attackers to take over user sessions through a crafted documentation link. The /docs/flows handler appends the user-controlled flows query to openapi_url and passes it unencoded into FastAPI's get_swagger_ui_html, placing it inside a script string. Exploitation requires a user to open the crafted link and lets injected JavaScript read application secrets through the victim's session.

The record

CVE
CVE-2025-49126
Published
Jun 23, 2025
Updated
Jun 23, 2025
Vendor
Visionatrix
Product
Visionatrix
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 23, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=>= 1.5.0, < 2.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Visionatrix · Visionatrixversion=>= 1.5.0, < 2.5.1

Published CVSS scores

8.8GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:L

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001User Execution: Malicious Link

Public exploit references

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

Technologies

Your stack

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Your stack

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