CVE-2026-55466Public exploitNetwork attack vector

Stored XSS via unsanitized inline XML attachment

Published Jul 10, 2026 · Updated Jul 10, 2026

Stored XSS in Snipe-IT before 8.6.2 allows remote authenticated users to execute JavaScript when a viewer opens a crafted attachment. UploadFileRequest stores text/xml XHTML raw because SVG sanitization runs only for image/svg+xml, while UploadedFilesController serves the file inline without the safe-type allowlist. Low-privilege assets.view and assets.files permissions suffice to upload the payload; execution occurs in Snipe-IT's origin when another user views it.

CVSS severity6.2
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Snipe-IT before 8.6.2 allows remote authenticated users to execute JavaScript when a viewer opens a crafted attachment. UploadFileRequest stores text/xml XHTML raw because SVG sanitization runs only for image/svg+xml, while UploadedFilesController serves the file inline without the safe-type allowlist. Low-privilege assets.view and assets.files permissions suffice to upload the payload; execution occurs in Snipe-IT's origin when another user views it.

The record

CVE
CVE-2026-55466
Published
Jul 10, 2026
Updated
Jul 10, 2026
Vendor
Grokability, Inc.
Product
Snipe-IT
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 10, 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?

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

  1. Affected versionversion=< 8.6.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Grokability, Inc. · Snipe-ITversion=< 8.6.2

Published CVSS scores

8.7NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
6.2GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA: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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

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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