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CVE-2026-55466

Snipeitapp Snipe-it cross-site scripting (XSS)

8.7 HIGHPublic exploitEPSS 0.44%
  1. Published10 Jul 2026

Description

Snipe-IT is an IT asset/license management system. Prior to 8.6.2, UploadFileRequest sanitizes SVG content only when PHP finfo reports image/svg+xml and UploadedFilesController serves attachments inline without using StorageHelper::allowSafeInline(), allowing a low-privilege user to upload active XHTML or XML content that is later served same-origin and executes JavaScript in a viewer’s browser. This issue is fixed in version 8.6.2.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionRequired
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Affected products

Snipeitapp Snipe-it< 8.6.2

Remediation

Fixed in
Snipeitapp Snipe-it≥ 8.6.2

References

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Frequently asked

Is CVE-2026-55466 being actively exploited?

CVE-2026-55466 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.44%.

How severe is CVE-2026-55466?

CVE-2026-55466 has a CVSS 3.1 base score of 8.7, rated high. EPSS estimates a 0.44% probability of exploitation.

Which products are affected by CVE-2026-55466?

Affected products include Snipeitapp Snipe-it.

How do I fix CVE-2026-55466?

Upgrade affected software to a fixed version, for example Snipeitapp Snipe-it 8.6.2 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-55466 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.