CVE-2026-15141

The web interface of the affected device relies on the HTTP referrer header as part of request validation.  Requests containing empty Referer value, or omitting the Referer header entirely, may be accepted and processed due to insufficient validation logic. Successful exploitation may allow an adjacent attacker with access to the web management interface to obtain device configuration details and other sensitive information.

Score

CVSS 3.1 5.7 Medium

Status

Analyzed - f23511db-6c3e-4e32-a477-6aa17d310630

Published

2026-08-12

Last modified

2026-10-23

Weaknesses

CWE-346

Affected products

• Tl-wr820n Firmware (Tp-link)
• Tl-wr820n V2 (Tp-link Systems Inc.)

References

• https://www.tp-link.com/kr/support/download/tl-wr820n/#Firmware
• https://www.tp-link.com/en/support/download/tl-wr820n/#Firmware
• https://www.tp-link.com/en/support/faq/5243/