# CVE-2026-44387: ELECOM Wireless LAN Routers reflected XSS in WebUI

Source: https://junglewise.ai/threats/cve-2026-44387-elecom-wireless-lan-routers-reflected-xss-in-webui  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-28. Updated: 2026-07-28  
License: CC BY 4.0 with a link back

CVE-2026-44387 · Severity: medium · CVSS 5.2 · Published 2026-07-28

ELECOM wireless LAN routers and access points contain a security flaw in their web management interface. If a logged-in administrator visits a malicious link, an attacker could execute unauthorized scripts in their browser. This could allow an attacker to hijack the administrator's session or modify device settings.

Vendors: [Elecom](https://junglewise.ai/threats/vendors/elecom).

## Quick answers

**Is CVE-2026-44387 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-44387 being exploited in the wild.

**How severe is CVE-2026-44387?** Medium severity, with a CVSS score of 5.2, published 28 July 2026.

**Which products and versions are affected?** Elecom WAB-I1750-PS v2.0.5 and earlier; Elecom WAB-M1775-PS v2.1.9 and earlier; Elecom WAB-M2133 v2.0.5 and earlier; Elecom WAB-S1167-PS v2.0.5 and earlier; and 1 more.

**Is there a fix for CVE-2026-44387?** A patch was published on 2026-07-28. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-44387 attacked?** It is attacked from the adjacent network, in an operating system.

**Am I affected by CVE-2026-44387?** Check whether you run Elecom WAB-I1750-PS, Elecom WAB-M1775-PS, Elecom WAB-M2133 or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A reflected cross-site scripting (XSS) vulnerability exists in the WebUI of multiple ELECOM wireless LAN routers and access points (CWE-79). The vulnerability is triggered when the web interface fails to properly neutralize user-supplied input before including it in generated web pages. An attacker on the adjacent network can exploit this by tricking a logged-in user into clicking a specially crafted link. Successful exploitation allows the execution of arbitrary JavaScript in the context of the victim's session, potentially leading to session hijacking or unauthorized configuration changes. Firmware updates have been released to address this issue.

## Affected products

- ELECOM WAB-M1775-PS v2.1.9 and earlier
- ELECOM WAB-S1775 v2.1.9 and earlier
- ELECOM WAB-M2133 v2.0.5 and earlier
- ELECOM WAB-I1750-PS v2.0.5 and earlier
- ELECOM WAB-S1167-PS v2.0.5 and earlier

## Timeline

- 2026-07-28: advisory
- 2026-07-28: patched

## References

- [https://jvn.jp/en/jp/JVN56870912/](https://jvn.jp/en/jp/JVN56870912/)
- [https://www.elecom.co.jp/news/security/20260728-01/](https://www.elecom.co.jp/news/security/20260728-01/)

## Related threats

- [ELECOM Wireless LAN Routers OS command injection in Restore Settings](https://junglewise.ai/threats/cve-2026-61376-elecom-wireless-lan-routers-os-command-injection-in-restore)