CVE-2026-8802Network attack vector

Authenticated file read via decoded path traversal

Published May 18, 2026 · Updated May 18, 2026

Path traversal in getPicThumb in opensourcepos Open Source Point of Sale 3.4.0 through 3.4.2 allows remote authenticated users to read server files. The Items controller URL-decodes pic_filename and uses its directory components to build a path under uploads/item_pics without constraining the resolved location. An authenticated user with Items module access can traverse outside that directory and read server files, including configuration data and encryption keys.

CVSS severity4.3
Medium
EPSS probability0.39%
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 getPicThumb in opensourcepos Open Source Point of Sale 3.4.0 through 3.4.2 allows remote authenticated users to read server files. The Items controller URL-decodes pic_filename and uses its directory components to build a path under uploads/item_pics without constraining the resolved location. An authenticated user with Items module access can traverse outside that directory and read server files, including configuration data and encryption keys.

The record

CVE
CVE-2026-8802
Published
May 18, 2026
Updated
May 18, 2026
Vendor
opensourcepos
Product
Open Source Point of Sale
Classifications
CWE-22, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 18, 2026CVE publishedPublication date reported by the CVE source.
  2. May 18, 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=3.4.0
  2. Affected versionversion=3.4.1
  3. Affected versionversion=3.4.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

opensourcepos · Open Source Point of Saleversion=3.4.0; version=3.4.1; version=3.4.2

Published CVSS scores

4.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
5.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
4.0VulDBAV:N/AC:L/Au:S/C:P/I:N/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 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 exploitUnconfirmed

Weakness, pattern, technique

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

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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