CVE-2026-41951Network attack vector

Authenticated code execution via unsafe locale template paths

Published May 11, 2026 · Updated May 11, 2026

Path traversal in GROWI 7.5.0 and earlier allows remote authenticated users to execute EJS templates when email is configured. Mail-generating routes and services concatenate the database-backed locale value into template paths without restricting it to supported locale directories. Administrative privileges are required; a crafted global language value can select an attacker-controlled EJS file and execute server-side code or commands.

CVSS severity8.6
High
EPSS probability0.50%
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 GROWI 7.5.0 and earlier allows remote authenticated users to execute EJS templates when email is configured. Mail-generating routes and services concatenate the database-backed locale value into template paths without restricting it to supported locale directories. Administrative privileges are required; a crafted global language value can select an attacker-controlled EJS file and execute server-side code or commands.

The record

CVE
CVE-2026-41951
Published
May 11, 2026
Updated
May 11, 2026
Vendor
WESEEK, Inc.
Product
GROWI
Classifications
CWE-22, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 11, 2026CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=v7.5.0 and earlier

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

WESEEK, Inc. · GROWIversion=v7.5.0 and earlier

Published CVSS scores

7.2JPCERT/CCCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
8.6JPCERT/CCCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/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 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

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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