CVE-2026-36725Public exploitNetwork attack vector

Stored XSS via unsanitized notice content rendering

Published Jun 9, 2026 · Updated Jun 9, 2026

Stored cross-site scripting in FastapiAdmin 2.2.0 and earlier allows remote authenticated users to run scripts through crafted notices. The create endpoint stores notice_content without sanitization, and the notice detail view passes it to WangEditor for unfiltered HTML rendering. Creating a notice requires authenticated access, and execution occurs when another user opens its detail view, exposing that browser session to data theft or unauthorized actions.

CVSS severity6.1
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in FastapiAdmin 2.2.0 and earlier allows remote authenticated users to run scripts through crafted notices. The create endpoint stores notice_content without sanitization, and the notice detail view passes it to WangEditor for unfiltered HTML rendering. Creating a notice requires authenticated access, and execution occurs when another user opens its detail view, exposing that browser session to data theft or unauthorized actions.

The record

CVE
CVE-2026-36725
Published
Jun 9, 2026
Updated
Jun 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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.

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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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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