CVE-2026-8699

A stored Cross-Site Scripting (XSS) vulnerability has been identified in the web-based management interface of Archer C5 v6.8 routers, due to insufficient server-side validation and lack of proper output encoding of user-controlled input in a certain field.  An attacker with administrative privileges can inject crafted HTML or JS payloads into the affected field. The payload is stored and later executed when the affected page is rendered in an administrator's browser.Successful exploitation allows execution of arbitrary JavaScript in an admin's browser, potentially leading to session hijacking and unauthorized access to router configuration, possibly resulting in exposure of sensitive data and modification of device settings. The vulnerability affects ISP-managed firmware variants of the product. Remediation is coordinated through service providers.
CVSS

No CVSS.

Configurations

No configuration.

History

02 Jul 2026, 17:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-07-02 17:17

Updated : 2026-07-02 18:16


NVD link : CVE-2026-8699

Mitre link : CVE-2026-8699

CVE.ORG link : CVE-2026-8699


JSON object : View

Products Affected

No product.

CWE
CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')