What is CVE-2021-43729?

CVE-2021-43729 is a medium-severity vulnerability in Pix-Link Lv-Wr09, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-05-20.

How severe is CVE-2021-43729?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Pix-Link Lv-Wr09

CVE-2021-43729

Pix-Link MiNi Router 28K.MiniRouter.20190211 was discovered to contain a stored cross-site scripting (XSS) vulnerability due to an unsanitized Security Key parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-05-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (48.5th percentile), scored 2026-10-26.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000

Affected products

Pix-Link Lv-Wr09
Pix-Link Lv-Wr09 Firmware — versions 28k.minirouter.20190211

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.pix-link.com/page50 (Product, Vendor Advisory)
blog-ssh3ll.medium.com/acexy-wireless-n-wifi-repeater-vulnerabilities-8bd5d14a2… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-43729?: CVE-2021-43729 is a medium-severity vulnerability in Pix-Link Lv-Wr09, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-05-20.
How severe is CVE-2021-43729?: Medium severity. CVSS v3 base score is 5.4 out of 10.