# CVE-2024-34577: Elecom WRC-X3000 Series XSS in easysetup.cgi

Source: https://junglewise.ai/threats/cve-2024-34577-elecom-wrc-x3000-series-xss-in-easysetup-cgi  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2024-08-30. Updated: 2026-05-12  
License: CC BY 4.0 with a link back

CVE-2024-34577 · Severity: medium · CVSS 6.1 · Published 2024-08-30

Elecom wireless LAN routers are affected by a security flaw that could allow an attacker to execute malicious scripts in a user's web browser. This occurs if a logged-in administrator visits a specially crafted website while their router management session is active. An exploit could lead to unauthorized changes to router settings or the theft of session information, potentially compromising the security of the local network.

Technologies: [Elecom Wrc-X3000gs2-B](https://junglewise.ai/threats/technologies/wrc-x3000gs2-b), [Elecom Wrc-X3000gs2-W](https://junglewise.ai/threats/technologies/wrc-x3000gs2-w), [Elecom Wrc-X3000gs2a-B](https://junglewise.ai/threats/technologies/wrc-x3000gs2a-b). Vendors: [Elecom](https://junglewise.ai/threats/vendors/elecom).

## Quick answers

**Is CVE-2024-34577 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2024-34577 being exploited in the wild.

**How severe is CVE-2024-34577?** Medium severity, with a CVSS score of 6.1, published 30 August 2024.

**Which products and versions are affected?** Elecom Japan WRC-X3000GST2-B v1.06 and earlier.

**Is there a fix for CVE-2024-34577?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2024-34577 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2024-34577?** Check whether you run Elecom Wrc-X3000gs2-B, Elecom Wrc-X3000gs2-B Firmware, Elecom Wrc-X3000gs2-W 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 multiple Elecom router models (WRC-X3000 series) due to improper neutralization of input values within the 'easysetup.cgi' script. The vulnerability is triggered when the application fails to properly sanitize user-supplied data before including it in the web response. An unauthenticated remote attacker can exploit this by enticing an authenticated user to visit a malicious URL or web page. Successful exploitation allows the execution of arbitrary JavaScript in the victim's browser, which can be used to hijack administrative sessions or modify device configurations. Firmware updates have been released to address this issue.

## Affected products

- Elecom WRC-X3000GS2-B v1.08 and earlier
- Elecom WRC-X3000GS2-W v1.08 and earlier
- Elecom WRC-X3000GS2A-B v1.08 and earlier
- Elecom WRC-X3000GST2-B v1.06 and earlier

## Timeline

- 2024-08-27: advisory: Initial JVN advisory published
- 2024-08-30: disclosed: CVE published to NVD
- 2026-05-12: other: Affected product list updated in advisory

## References

- [https://jvn.jp/en/jp/JVN24885537/](https://jvn.jp/en/jp/JVN24885537/)
- [https://www.elecom.co.jp/news/security/20240827-01/](https://www.elecom.co.jp/news/security/20240827-01/)

## Related threats

- [ELECOM Wireless LAN devices hard-coded key in configuration backups](https://junglewise.ai/threats/cve-2026-25107-elecom-wireless-lan-devices-hard-coded-key-in-configuration)
- [ELECOM Wireless LAN products OS command injection](https://junglewise.ai/threats/cve-2026-22550-elecom-wireless-lan-products-os-command-injection)
- [ELECOM Wireless LAN products CSRF vulnerability](https://junglewise.ai/threats/cve-2026-20704-elecom-wireless-lan-products-csrf-vulnerability)