CVE-2025-25427

Public Exploit
XSS in TP-Link TL-WR841N v14/v14.6/v14.8 Upnp page

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.

Category

8.6
CVSS
Severity: High
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.30%
Vendor Advisory tp-link.com
Affected: TP-Link Systems Inc. TL-WR841N v14/v14.6/v14.8
Published at:
Updated at:

References

Link Tags
https://www.tp-link.com/us/support/faq/4415/ vendor advisory
https://www.tp-link.com/us/support/download/tl-wr841n/#Firmware product
https://github.com/slin99/2025-25427 third party advisory exploit
https://github.com/slin99/2025-25427/blob/master/readme.md exploit third party advisory

Frequently Asked Questions

What is the severity of CVE-2025-25427?
CVE-2025-25427 has been scored as a high severity vulnerability.
How to fix CVE-2025-25427?
To fix CVE-2025-25427, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-25427 being actively exploited in the wild?
It is possible that CVE-2025-25427 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-25427?
CVE-2025-25427 affects TP-Link Systems Inc. TL-WR841N v14/v14.6/v14.8.
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