CVE-2026-8699 (GCVE-0-2026-8699)

Vulnerability from cvelistv5 – Published: 2026-07-02 16:52 – Updated: 2026-07-02 17:23
VLAI
Title
Stored Cross-Site Scripting (XSS) in TP-Link Archer C5 Web Management Interface
Summary
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.
Severity
7 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-02 17:23 UTC
CWE
  • CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Assigner
TPLink CNA under the mitre root
CNA scorecard B 87/100 over 106 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
TP-Link Systems Inc. Archer C5 v6.8 Affected: 0 , < 0.2.0 3.0.0 v6063.0 Build 260331 Rel.37416n (custom)
guessed Create a notification for this product.
Credits
Jithin Nambiar J
Show details on NVD website
To clipboard 

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