CVE-2026-86738Network attack vector

Superuser account takeover via stored CSS injection

Published Sep 8, 2026 · Updated Sep 8, 2026

CSS injection in Grokability Snipe-IT before 8.7.0 allows remote authenticated users to exfiltrate superuser CSRF tokens. Custom CSS sanitization reverses encoding for greater-than and double-quote characters, allowing stored @import and url() attribute-selector rules to read token values. Superuser access is required to plant the payload, and another superuser must load an affected page before account takeover becomes possible.

CVSS severityUnavailable
Unscored
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSS injection in Grokability Snipe-IT before 8.7.0 allows remote authenticated users to exfiltrate superuser CSRF tokens. Custom CSS sanitization reverses encoding for greater-than and double-quote characters, allowing stored @import and url() attribute-selector rules to read token values. Superuser access is required to plant the payload, and another superuser must load an affected page before account takeover becomes possible.

The record

CVE
CVE-2026-86738
Published
Sep 8, 2026
Updated
Sep 8, 2026
Vendor
Grokability, Inc.
Product
Snipe-IT
Classifications
T1539
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 8, 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=0 <8.7.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Grokability, Inc. · Snipe-ITversion=0 <8.7.0

Published CVSS scores

No CVSS assessment is available in this record.

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

T1539Steal Web Session Cookie

Public exploit references

No public exploit references are available in this record.

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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