CVE-2026-86804: Access Control Flaw (CVSS 5.3)

Description

A vulnerability was identified in seakee CPA-Manager-Plus up to 1.11.10. This vulnerability affects the function CPAResource of the file apps/manager-server/internal/http/controller/proxy/handler.go of the component HTTP Handler. The manipulation leads to improper authorization. It is possible to initiate the attack remotely. Upgrading to version 1.11.11 is able to resolve this issue. The identifier of the patch is 842eec791377ddcbea5cd639bc065eaa4801d656. It is suggested to upgrade the affected component.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS — Exploit Prediction

0.0038

Probability of exploitation

0.32%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-266 CWE-266

CWE-285 CWE-285

References

Other References

https://github.com/seakee/CPA-Manager-Plus/ https://github.com/seakee/CPA-Manager-Plus/commit/842eec791377ddcbea5cd639bc065eaa4801d656 https://github.com/seakee/CPA-Manager-Plus/issues/462 https://github.com/seakee/CPA-Manager-Plus/pull/463 https://github.com/seakee/CPA-Manager-Plus/releases/tag/v1.11.11 https://vuldb.com/cve/CVE-2026-86804 https://vuldb.com/submit/911036 https://vuldb.com/vuln/399810 https://vuldb.com/vuln/399810/cti

Frequently Asked Questions

What is CVE-2026-86804? +

A vulnerability was identified in seakee CPA-Manager-Plus up to 1.11.10. This vulnerability affects the function CPAResource of the file apps/manager-server/internal/http/controller/proxy/handler.go of the component HTTP Handler. The manipulation leads to improper authorization. It is possible to initiate the attack remotely. Upgrading to version 1.11.11 is able to resolve this issue. The identifier of the patch is 842eec791377ddcbea5cd639bc065eaa4801d656. It is suggested to upgrade the affected component. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2026-86804? +

CVE-2026-86804 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0038, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-86804? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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