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Improper access control in light0011 cms captcha validation

Priority HIGH 70CWE-266Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-266 and CWE-284.

Summary

light0011 cms, at commits c774dce31c6df0055568a8d5c53d964d99be199d and f72cf46f601efb2a0618c3814cc2f61380b38930, has an improper access control flaw in the Captcha Validation component of App/Home/Controller/UserController.class.php (CWE-284). A remote attacker without privileges or user interaction can manipulate the component to reach functions that should be restricted. A public exploit is available, and the project did not respond to an early issue report.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

A weakness has been identified in light0011 cms c774dce31c6df0055568a8d5c53d964d99be199d/f72cf46f601efb2a0618c3814cc2f61380b38930. This impacts an unknown function of the file App/Home/Controller/UserController.class.php of the component Captcha Validation. Executing a manipulation can lead to improper access controls. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00361 30th 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
Yes
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
light0011cmsc774dce31c6df0055568a8d5c53d964d99be199d; f72cf46f601efb2a0618c3814cc2f61380b38930—No fix listedCNA
  • cms Vendorlight0011 Affected c774dce31c6df0055568a8d5c53d964d99be199d; f72cf46f601efb2a0618c3814cc2f61380b38930 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:light0011:cms:*:*:*:*:*:*:*:*——light0011
  • cpe:2.3:a:light0011:cms:*:*:*:*:*:*:*:* Versions — — ·light0011

Remediation

The sources list no fixed version for light0011 cms.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-18 Threatist record created from CVE-2026-112025
  2. 2026-10-19 Alias added: GHSA-fwf8-p66g-5p39
  3. 2026-10-19 Priority changed: MEDIUM → LOW
  4. 2026-10-20 CISA SSVC decision points changed
  5. 2026-10-20 Priority changed: LOW → HIGH

References

  • TI-2026-76209 Business logic error in light0011 cms Vote controller CVSS 4.0MEDIUM 6.9
  • TI-2026-76208 File and directory exposure in light0011 cms Uploadify component CVSS 4.0MEDIUM 6.9
  • TI-2026-59092 light0011 cms Debug Mode config.php information disclosure CVSS 4.0MEDIUM 6.9
  • TI-2026-59090 light0011 cms Cookie Helper UserModel.class.php improper authentication CVSS 4.0MEDIUM 6.9
  • TI-2026-59089 light0011 cms Upload.class.php upload unrestricted upload CVSS 4.0MEDIUM 6.9
  • TI-2026-58589 light0011 cms Chapter Controller ChapterController.class.php authorization CVSS 4.0MEDIUM 6.9
See all 12 →

Sources