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CVE-2026-108567

InstantSoft icms2 Image image.php files_delete_file path traversal

A vulnerability was found in InstantSoft icms2 up to 2.18.2. Impacted is the function files_delete_file of the file system/fields/image.php of the component Image Handler. Performing a manipulation of the argument size results in path traversal. The attack may be initiated remotely. The exploit has been made public and could be used. The patch is named 03d70937f1ff97031523222808726994b8b79379. It is recommended to apply a patch to fix this issue.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Instantcms Instantsoft
Products
Icms2 Icms2
CVE-2026-48707

InstantCMS vulnerable to SSRF via upload redirect bypass allows internal network service scanning

InstantCMS is a free and open source content management system. Versions prior to 2.18.2 have a Server-Side Request Forgery (SSRF) vulnerability in the file upload functionality (`system/core/uploader.php` at lines 509-532). When the "upload from URL" feature follows an HTTP redirect, the redirected target URL bypasses the private IP address blacklist check. This allows authenticated users to scan and access internal network services. Version 2.18.2 contains a fix.

CVSS 3.1 · 3.1 Low EPSS < 1% KEV · Not listed
Vendors
Instantcms
Products
Icms2
CVE-2026-54611

InstantCMS has Remote Code Execution in package installer

InstantCMS is a free and open source content management system. Versions prior to 2.18.2 have a Remote Code Execution (RCE) issue that allows remote authenticated attackers to execute any PHP code via the component installer. It is possible to upload a malicious component into the server, however, it won't be installed, but upload files will be executed. Normally all php files in upload folder are not executed, however, by uploading custom .htaccess it becomes possible. Version 2.18.2 contains a fix.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Instantcms
Products
Icms2
CVE-2026-28281

InstantCMS has Multiple CSRF Vulnerabilities

InstantCMS is a free and open source content management system. Prior to 2.18.1, InstantCMS does not validate CSRF tokens, which allows attackers grant moderator privileges to users, execute scheduled tasks, move posts to trash, and accept friend requests on behalf of the user. This vulnerability is fixed in 2.18.1.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Instantcms
Products
Icms2 Instantcms
CVE-2024-31212

SQL injection in index_chart_data action

InstantCMS is a free and open source content management system. A SQL injection vulnerability affects instantcms v2.16.2 in which an attacker with administrative privileges can cause the application to execute unauthorized SQL code. The vulnerability exists in index_chart_data action, which receives an input from user and passes it unsanitized to the core model `filterFunc` function that further embeds this data in an SQL statement. This allows attackers to inject unwanted SQL code into the statement. The `period` should be escaped before inserting it in the query. As of time of publication, a patched version is not available.

CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Vendors
Instantcms
Products
Icms2 Instantcms
CVE-2023-4928

SQL Injection in instantsoft/icms2

SQL Injection in GitHub repository instantsoft/icms2 prior to 2.16.1.

CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
Vendors
Instantcms
Products
Icms2
CVE-2024-50348

InstantCMS has a Cross Site Scripting Vulnerability

InstantCMS is a free and open source content management system. In photo upload function in the photo album page there is no input validation taking place. Due to this attackers are able to inject the XSS (Cross Site Scripting) payload and execute. This vulnerability is fixed in 2.16.3.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Vendors
Instantcms
Products
Icms2 Instantcms