CVE-2026-29520 Hereta ETH-IMC408M Reflected XSS via ping_ipaddr Parameter
Attackers can execute arbitrary JavaScript in administrator sessions via malicious links in the ping function, potentially compromising the device.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-29520?
CVE-2026-29520 is a medium-severity cross-site scripting vulnerability in Shenzhen Hereta Technology Co., Ltd. Hereta ETH-IMC408M, published on 16 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Hereta ETH-IMC408M firmware version 1.0.15 and prior contain a reflected cross-site scripting vulnerability in the Network Diagnosis ping function that allows attackers to execute arbitrary JavaScript. Attackers can craft malicious links with injected script payloads in the ping_ipaddr parameter to compromise authenticated administrator sessions when the links are visited.
Weakness: CWE-79
Which versions are affected by CVE-2026-29520?
It affects 1 product.
Products include Hereta Eth-Imc408m Firmware.
How do I fix CVE-2026-29520?
No fix has been published for CVE-2026-29520 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-29520 being exploited?
There is no known exploitation of CVE-2026-29520 in the wild and no public exploit code.
Other vulnerabilities in Shenzhen Hereta Technology Co., Ltd. Hereta ETH-IMC408M
Sources
Also known as GHSA-ffrp-x6rj-x2h2.