Read the docs
TI-2026-21344 Aliases CVE-2026-26682GHSA-5859-4v8q-r354

An issue in fastCMS before v.0.1.6 allows a local attacker to execute arbitrary code via…

Priority HIGH 69CWE-94Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-94.

Summary

An issue in fastCMS before v.0.1.6 allows a local attacker to execute arbitrary code via the PluginController.java component

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00211 11th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:xjd2020:fastcms:*:*:*:*:*:*:*:*before 0.1.6VulnerableXjd2020
  • cpe:2.3:a:xjd2020:fastcms:*:*:*:*:*:*:*:* Versions before 0.1.6 Vulnerable ·Xjd2020

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-26682
  2. 2026-10-03 Alias added: GHSA-5859-4v8q-r354

References

Exploit 1

Advisory 1

  • TI-2022-03938 FastCMS Template edit injection CVSS 3.1HIGH 8.8
  • TI-2025-02261 FastCMS list sql injection CVSS 4.0MEDIUM 5.3
  • TI-2024-07168 FastCMS New Article Category Page cross site scripting CVSS 4.0MEDIUM 5.3
  • TI-2023-01126 fastcms ZIP File TemplateController.java path traversal CVSS 3.1HIGH 7.2
  • TI-2023-01051 FastCMS New Article Tab cross site scripting CVSS 4.0MEDIUM 5.1
  • TI-2025-01143 FastCMS Template Menu menu cross site scripting CVSS 4.0MEDIUM 4.8

Sources

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