CVE-2021-43778Public exploitNetwork attack vector

Arbitrary file read via unterminated path rejection

Published Nov 24, 2021 · Updated Sep 8, 2025

Path traversal in the pluginsGLPI Barcode plugin 2.0.0 through 2.6.0 allows remote attackers to read arbitrary server files. front/send.php detects a filename outside the generated-files directory but continues execution and joins that untrusted filename to the document directory instead of terminating the request. No authentication or user interaction is required; exposure is limited to GLPI instances with the plugin installed, and the demonstrated consequence is arbitrary file disclosure.

CVSS severity9.1
Critical
EPSS probability52.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in the pluginsGLPI Barcode plugin 2.0.0 through 2.6.0 allows remote attackers to read arbitrary server files. front/send.php detects a filename outside the generated-files directory but continues execution and joins that untrusted filename to the document directory instead of terminating the request. No authentication or user interaction is required; exposure is limited to GLPI instances with the plugin installed, and the demonstrated consequence is arbitrary file disclosure.

The record

CVE
CVE-2021-43778
Published
Nov 24, 2021
Updated
Sep 8, 2025
Vendor
pluginsGLPI
Product
Barcode
Classifications
CWE-22, T1190, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 24, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 8, 2025Record 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=>= 2.0.0, < 2.6.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

pluginsGLPI · Barcodeversion=>= 2.0.0, < 2.6.1

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
9.1GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application
T1005Data from Local System

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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