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TI-2018-11326 Aliases CVE-2018-15886GHSA-w9pc-qgp8-4xhx

Monstra CMS 3.0.4 does not properly restrict modified Snippet content, as demonstrated by…

Priority LOW 35CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
High
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 3.0 · NVD. Fix status from CNA. Impact type from CWE-94.

Summary

Monstra CMS 3.0.4 does not properly restrict modified Snippet content, as demonstrated by the admin/index.php?id=snippets&action=edit_snippet&filename=google-analytics URI, which allows attackers to execute arbitrary PHP code by placing this code after a <?php substring.

Why it matters now

EPSS 0.01649 76th 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

Not available: CISA has not published SSVC decision points for this record.

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:monstra:monstra:3.0.4:*:*:*:*:*:*:*3.0.4VulnerableMonstra
  • cpe:2.3:a:monstra:monstra:3.0.4:*:*:*:*:*:*:* Versions 3.0.4 Vulnerable ·Monstra

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-15886
  2. 2026-10-03 Alias added: GHSA-w9pc-qgp8-4xhx

References

Exploit 1

  • TI-2017-13256 Monstra CMS 3.0.4 allows users to upload arbitrary files, which leads to remote command… CVSS 3.0HIGH 8.8
  • TI-2024-24401 A cross-site scripting (XSS) vulnerability in Monstra CMS v3.0.4 allows attackers to… CVSS 3.1MEDIUM 5.4
  • TI-2024-24399 A cross-site scripting (XSS) vulnerability in Monstra CMS v3.0.4 allows attackers to… CVSS 3.1MEDIUM 4.8
  • TI-2018-04701 Monstra CMS through 3.0.4 has an incomplete "forbidden types" list that excludes .php… CVSS 3.1HIGH 8.8
  • TI-2021-14797 A remote code execution (RCE) vulnerability in the component… CVSS 3.1CRITICAL 9.8
  • TI-2020-15550 A local file inclusion vulnerability was discovered in the captcha function in Monstra… CVSS 3.1CRITICAL 9.8
See all 33 →

Sources

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