InstantSoft Icms2 vulnerabilities

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Published CVEs affecting InstantSoft Icms2: 4 record(s), with affected versions and fixes.

CVE-2026-108568 Medium · 4.3 CWE-345 Oct 11, 2026

InstantSoft icms2 Billing paypal.php validatePaypalOrder data authenticity

A vulnerability was determined in InstantSoft icms2 up to 2.18.2. The affected element is the function validatePaypalOrder of the file system/controllers/billing/actions/paypal.php of the component Billing Module. Executing a manipulation of the argument bid/sig can lead to insufficient verification of data authenticity. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

CVE-2026-108567 Medium · 4.3 CWE-22 Oct 11, 2026

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.

CVE-2026-108566 Low · 3.5 CWE-79 Oct 11, 2026

InstantSoft icms2 Private Message index.tpl.php index cross site scripting

A vulnerability has been found in InstantSoft icms2 up to 2.18.2. This issue affects the function index of the file templates/default/controllers/messages/index.tpl.php of the component Private Message Handler. Such manipulation of the argument nickname leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The name of the patch is 3a1ec8fcb073a46d06a2ab83bc2bf68225834281. It is best practice to apply a patch to resolve this issue.

CVE-2026-28281 High · 7.1 CWE-352 Mar 10, 2026

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.