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Vulnerability record · CVE-2026-3716 · published 8 March 2026

CVE-2026-3716: Wavlink wl-wn579x3-c firmware cross-site scripting vulnerability

Wavlink · Wl Wn579x3 C Firmware

A vulnerability was determined in Wavlink WL-WN579X3-C 231124. This vulnerability affects the function sub_401AD4 of the file /cgi-bin/adm.cgi. Executing a manipulation of the argument Hostname can lead to cross site scripting. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 20260226 is able to resolve this issue. The affected component should be upgraded. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

1.9 CVSS 4.0 Low EPSS 0.36% · top 73.2% CWE-79 · Cross-site scriptingCWE-94 · Code injection
1.9CVSS 4.0 base score, v2 3.3
0.36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

A vulnerability was determined in Wavlink WL-WN579X3-C 231124. This vulnerability affects the function sub_401AD4 of the file /cgi-bin/adm.cgi. Executing a manipulation of the argument Hostname can lead to cross site scripting. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 20260226 is able to resolve this issue. The affected component should be upgraded. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://dl.wavlink.com/firmware/RD/WN579X3C_WAVLINK_V20260226_WO_cb3003b2.bin Broken Link
https://github.com/Litengzheng/vul_db/blob/main/WL-WN579X3-C/vul_18/README.md ExploitThird Party Advisory
https://vuldb.com/?ctiid.349661 Permissions RequiredVDB Entry
https://vuldb.com/?id.349661 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.765326 Third Party AdvisoryVDB Entry

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-3716), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.