CVE-2025-25427

8.6 highEPSS 0.6%

High (8.6) in tp-link wr841n firmware. EPSS 0.6% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

8.6 high

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:L/SI:N/SA:L

CVSS 3.1

5.4 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2025-04-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

tp-link:wr841n_firmware

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

Check your stack JSON