CVE-2022-41544Public exploitNetwork attack vector

Authenticated code execution via unchecked theme path

Published Oct 18, 2022 · Updated May 13, 2025

Path traversal in GetSimple CMS 3.3.16 allows remote authenticated users to execute PHP code through the administrative theme editor. admin/theme-edit.php accepts edited_file from a POST request and concatenates it beneath the themes directory before fopen writes attacker-supplied content, without repeating the earlier safe-path validation. The endpoint requires a valid login cookie and save nonce, so an authenticated administrator can traverse out of the selected theme and overwrite a web-accessible PHP file for server-side execution.

CVSS severity9.8
Critical
EPSS probability10.41%
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 GetSimple CMS 3.3.16 allows remote authenticated users to execute PHP code through the administrative theme editor. admin/theme-edit.php accepts edited_file from a POST request and concatenates it beneath the themes directory before fopen writes attacker-supplied content, without repeating the earlier safe-path validation. The endpoint requires a valid login cookie and save nonce, so an authenticated administrator can traverse out of the selected theme and overwrite a web-accessible PHP file for server-side execution.

The record

CVE
CVE-2022-41544
Published
Oct 18, 2022
Updated
May 13, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-94, T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 18, 2022CVE publishedPublication date reported by the CVE source.
  2. May 13, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8CISA ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1505.003Server Software Component: Web Shell

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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