Read the docs
TI-2023-04286 Aliases CVE-2023-4650GHSA-vp69-r7gq-xp5p

Improper Access Control in instantsoft/icms2

Priority MEDIUM 55CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-284.

Summary

Improper Access Control in GitHub repository instantsoft/icms2 prior to 2.16.1-git.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00538 45th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed instantsoft/icms2 (instantsoft): 2.16.1-git

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
instantsoftinstantsoft/icms2before 2.16.1-git2.16.1-gitPatch availableCNA
  • instantsoft/icms2 Vendorinstantsoft Affected before 2.16.1-git Fixed in 2.16.1-git Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:instantcms:instantcms:*:*:*:*:*:*:*:*before 2.16.1VulnerableInstantCMS
  • cpe:2.3:a:instantcms:instantcms:*:*:*:*:*:*:*:* Versions before 2.16.1 Vulnerable ·InstantCMS

Remediation

  • Fix · CNA instantsoft/icms2 (instantsoft) Fixed in 2.16.1-git

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    instantsoft/icms2 2.16.1-git

    3 records Highest priority Priority MEDIUM 3 MEDIUM

    Other records, highest priority first

    • TI-2023-04288 Cross-site Scripting (XSS) - Stored in instantsoft/icms2Priority MEDIUM 58
    • TI-2023-04289 Cross-site Scripting (XSS) - Stored in instantsoft/icms2Priority MEDIUM 55
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-4650
  2. 2026-10-03 Alias added: GHSA-vp69-r7gq-xp5p

References

Exploit 1

Patch 1

  • TI-2023-03877 SQL Injection in instantsoft/icms2 CVSS 3.1CRITICAL 9.1
  • TI-2024-20589 SQL injection in index_chart_data action CVSS 3.1HIGH 7.2
  • TI-2023-04538 SQL Injection in instantsoft/icms2 CVSS 3.1HIGH 7.2
  • TI-2025-36697 InstantCMS vulnerable to Server-Side Request Forgery via package installer CVSS 3.1HIGH 7.2
  • TI-2023-04291 Cross-site Scripting (XSS) - Reflected in instantsoft/icms2 CVSS 3.1MEDIUM 6.1
  • TI-2026-39443 InstantCMS has Remote Code Execution in package installer CVSS 3.1MEDIUM 5.5
See all 25 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences