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TI-2026-41409 Aliases CVE-2026-57518GHSA-rc6m-346q-rgq6

Pagekit CMS 1.0.18 Privilege Escalation via UserApiController

Priority HIGH 73CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

Pagekit CMS 1.0.18 contains a privilege escalation vulnerability that allows authenticated users with the 'user: manage users' permission to escalate privileges by assigning arbitrary custom roles to themselves due to missing authorization checks in UserApiController::saveAction(). Attackers can assign themselves a custom role with the 'system: manage packages' permission and then upload and install a malicious PHP package through the admin package installer to achieve remote code execution.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00685 52nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
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
Pagekitpagekitup to 1.0.18—No fix listedCNA
  • pagekit VendorPagekit Affected up to 1.0.18 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-57518
  2. 2026-10-03 Alias added: GHSA-rc6m-346q-rgq6

References

Exploit 1

  • TI-2025-41149 An Insecure Direct Object Reference (IDOR) in Pagekit CMS v1.0.18 allows attackers to escalate privileges. CVSS 3.1CRITICAL 9.8
  • TI-2025-41148 An authenticated arbitrary file upload vulnerability in the /storage/poc.php component of… CVSS 3.1CRITICAL 9.9
  • TI-2022-18350 A file upload vulnerability exists in the storage feature of pagekit 1.0.18, which allows… CVSS 3.1CRITICAL 9.8
  • TI-2023-21646 An issue in Pagekit pagekit v.1.0.18 alows a remote attacker to execute arbitrary code… CVSS 3.1HIGH 7.8
  • TI-2026-05838 Pagekit CMS StringStorage Template PhpEngine.php evaluate eval injection CVSS 4.0MEDIUM 5.1
  • TI-2024-30850 Pagekit 1.0.18 is vulnerable to Cross Site Scripting (XSS) in index.php/admin/site/widget. CVSS 3.1MEDIUM 4.7
See all 14 →

Sources

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