CVE-2026-5385Public exploitNetwork attack vector

Browser script execution via raw Content response

Published Jun 2, 2026 · Updated Jun 2, 2026

Stored XSS in GLPI before 11.0.7 allows remote authenticated users with knowledge-base write access to execute scripts in a viewer's browser. KnowbaseItemController::content() returns the stored answer field directly in the Content response instead of applying the sanitization used by the Full path. Exploitation requires knowledge-base modification rights and active viewing of the poisoned item, limiting execution to the viewer's browser session.

CVSS severity8.4
High
EPSS probability0.42%
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 GLPI before 11.0.7 allows remote authenticated users with knowledge-base write access to execute scripts in a viewer's browser. KnowbaseItemController::content() returns the stored answer field directly in the Content response instead of applying the sanitization used by the Full path. Exploitation requires knowledge-base modification rights and active viewing of the poisoned item, limiting execution to the viewer's browser session.

The record

CVE
CVE-2026-5385
Published
Jun 2, 2026
Updated
Jun 2, 2026
Vendor
GLPI Project
Product
GLPI
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 2, 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 <11.0.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GLPI Project · GLPIversion=0 <11.0.7

Published CVSS scores

8.4Fluid AttacksCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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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