CVE-2026-108566 Details
Description
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.
A cross-site scripting (XSS) vulnerability has been identified in InstantSoft icms2 versions through 2.18.2. The issue arises in the Private Message Handler component, specifically within the 'index.tpl.php' file of the default template. The vulnerability is triggered by manipulating the 'nickname' argument, which can be exploited remotely.
Users are advised to update to the latest version of InstantSoft icms2, where this vulnerability has been patched. The specific commit addressing this issue is '3a1ec8fcb073a46d06a2ab83bc2bf68225834281'.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 11, 2026CISA-ADP
Assessed Oct 13, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://vuldb.com/submit/954247 | CISA-ADP | Issue TrackingPermission Required |
| https://github.com/instantsoft/icms2/ | [email protected] | ProductVendor |
| https://github.com/instantsoft/icms2/commit/3a1ec8fcb073a46d06a2ab83bc2bf68225834281 | [email protected] | Source CodeVendor |
| https://vuldb.com/cve/CVE-2026-108566 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/954247 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/416223 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/416223/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| InstantSoft icms2 | <= 2.18.2 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 13, 2026 | CVE Modified | CISA-ADP |
| Oct 11, 2026 | New CVE Received | [email protected] |