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Information disclosure in Kameleo Cookie Controller

Priority LOW 30CWE-200Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-200 and CWE-284.

Summary

Kameleo up to 5.3.1 has an information disclosure flaw in the function CookieController.ListCookies of the file client-engine-application/w.cs, part of the Cookie Controller component. Manipulating the argument guid discloses information, and the attack can be carried out remotely. The flaw is classified as CWE-200 and CWE-284 and is rated MEDIUM with a CVSS 4.0 base score of 5.3. The vendor was contacted early about this disclosure but did not respond.

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

Description from the CNA

A security flaw has been discovered in Kameleo up to 5.3.1. Affected by this issue is the function CookieController.ListCookies of the file client-engine-application/w.cs of the component Cookie Controller. The manipulation of the argument guid results in information disclosure. The attack can be executed remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00341 27th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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
—Kameleo5.3.0; 5.3.1—No fix listedCNA
  • Kameleo Vendor— Affected 5.3.0; 5.3.1 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:kameleo:kameleo:*:*:*:*:*:*:*:*———
  • cpe:2.3:a:kameleo:kameleo:*:*:*:*:*:*:*:* Versions — — ·—

Remediation

The sources list no fixed version for Kameleo.

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

Timeline

  1. 2026-10-26 Threatist record created from CVE-2026-116282
  2. 2026-10-26 CISA SSVC decision points changed
  3. 2026-10-27 Alias added: GHSA-4fqf-wxmc-2q69

References

Sources