CVE-2020-37169Public exploit

Authenticated PHP inclusion via unchecked pack value

Published May 13, 2026 · Updated May 13, 2026

Local file inclusion in Ultimate Member 2.1.3 allows attackers to include PHP files through a crafted POST pack value. The upgrade handler appends the unchecked pack value to packages_dir and passes the resulting init.php path to include_once. Authenticated access to the WordPress handler is required; the record asserts code execution, but both published base vectors score confidentiality impact only.

CVSS severity6.8
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local file inclusion in Ultimate Member 2.1.3 allows attackers to include PHP files through a crafted POST pack value. The upgrade handler appends the unchecked pack value to packages_dir and passes the resulting init.php path to include_once. Authenticated access to the WordPress handler is required; the record asserts code execution, but both published base vectors score confidentiality impact only.

The record

CVE
CVE-2020-37169
Published
May 13, 2026
Updated
May 13, 2026
Vendor
Ultimate Member Group Ltd
Product
Ultimate Member
Classifications
CWE-98, T1190
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 13, 2026CVE publishedPublication date reported by the CVE source.
  2. May 13, 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=2.1.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Ultimate Member Group Ltd · Ultimate Memberversion=2.1.3

Published CVSS scores

5.5VulnCheckCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.8VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-98Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')
T1190Exploit Public-Facing Application

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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