CVE-2026-108566CWE-79CWE-94cross-site-scriptingcode-injection

CVE-2026-108566

Low · published October 11, 2026

CVSS v3.1
3.5
EPSS
0%
Percentile
9.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
3.5 · LOW
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
CVSS v4.0
5.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
EPSS
0.00199 · 9.1th percentile
Weaknesses
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'); CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-10-11T14:16Z
References (7)
https://github.com/instantsoft/icms2/ · [email protected]https://github.com/instantsoft/icms2/commit/3a1ec8fcb073a46d06a2ab83bc2bf68225834281 · [email protected]https://vuldb.com/cve/CVE-2026-108566 · [email protected]https://vuldb.com/submit/954247 · [email protected]https://vuldb.com/vuln/416223 · [email protected]https://vuldb.com/vuln/416223/cti · [email protected]https://vuldb.com/submit/954247 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 12 OCT 03:26Z
    EPSS moved — → 0%
    epss
  • 11 OCT 09:15Z
    InstantSoft icms2 Private Message index.tpl.php index cross site scripting
    cvelistv5
  • 11 OCT 09:15Z
    InstantSoft icms2 Private Message index.tpl.php index cross site scripting
    cvelistv5