CVE-2026-55481Network attack vector

Stored CSS injection via unvalidated branding colors

Published Jul 10, 2026 · Updated Jul 10, 2026

Stored CSS injection in Grokability Snipe-IT before 8.6.2 allows remote authenticated users to inject CSS into authenticated pages. The base default.blade.php layout inserts header_color and related branding values into a style block with HTML escaping instead of CSS-context validation, so crafted values can close a property and create new rules. Exploitation requires superadmin access, and the injected rules reach active users on their next authenticated page load when Content Security Policy is disabled.

CVSS severity6.2
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored CSS injection in Grokability Snipe-IT before 8.6.2 allows remote authenticated users to inject CSS into authenticated pages. The base default.blade.php layout inserts header_color and related branding values into a style block with HTML escaping instead of CSS-context validation, so crafted values can close a property and create new rules. Exploitation requires superadmin access, and the injected rules reach active users on their next authenticated page load when Content Security Policy is disabled.

The record

CVE
CVE-2026-55481
Published
Jul 10, 2026
Updated
Jul 10, 2026
Vendor
Grokability, Inc.
Product
Snipe-IT
Classifications
CWE-79
Attack vector
network
Privileges
admin

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 privilegesadmin

What is affected?

Grokability, Inc. · Snipe-ITversion=< 8.6.2

Published CVSS scores

6.2GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/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.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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