VulnerabilityAnalyzed
CVE-2025-25427
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.
HIGH 8.6EPSS 0.56%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 4.0
- 8.6 HIGHCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:L/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.56% probability · 45th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- tp-link/wr841n firmware
- Source
- f23511db-6c3e-4e32-a477-6aa17d310630
References
- https://github.com/slin99/2025-25427Exploit, Third Party Advisory
- https://www.tp-link.com/us/support/download/tl-wr841n/#FirmwareProduct
- https://www.tp-link.com/us/support/faq/4415/Vendor Advisory
- https://github.com/slin99/2025-25427/blob/master/readme.mdExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.