What’s Vulnerable › Vulnerabilities

CVE-2025-25427: XSS in TP-Link TL-WR841N v14/v14.6/v14.8 Upnp page

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-04-18 · updated 2026-06-17
• Weakness: CWE-79

Description

A stored cross-site scripting (XSS) vulnerability in the upnp.htm page of the web Interface in TP-Link WR841N v14/v14.6/v14.8 <= Build 241230 Rel. 50788n allows remote attackers to inject arbitrary JavaScript code via the port mapping description. This leads to an execution of the JavaScript payload when the upnp page is loaded.

Affected products

• TP-Link Systems Inc. TL-WR841N v14/v14.6/v14.8: through 241230

References

• https://github.com/slin99/2025-25427
• https://www.tp-link.com/us/support/download/tl-wr841n/#Firmware
• https://www.tp-link.com/us/support/faq/4415/
• https://github.com/slin99/2025-25427/blob/master/readme.md

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