# CVE-2026-45560: Roxy-WI stored XSS in log viewer

Source: https://junglewise.ai/threats/cve-2026-45560-roxy-wi-stored-xss-in-log-viewer  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-10. Updated: 2026-06-10  
License: CC BY 4.0 with a link back

CVE-2026-45560 · Severity: medium · CVSS 6.1 · Published 2026-06-10

Roxy-WI, a management interface for web servers like HAProxy and Nginx, contains a security flaw in its log viewing feature. An attacker can send a specially crafted web request to any server managed by Roxy-WI, which places malicious code into the server's access logs. When an administrator later views these logs through the Roxy-WI dashboard, the malicious code executes in their browser, potentially allowing the attacker to hijack the administrator's session or modify system settings.

Technologies: [Roxy-WI](https://junglewise.ai/threats/technologies/roxy-wi). Vendors: [Roxy-WI](https://junglewise.ai/threats/vendors/roxy-wi).

## Quick answers

**Is CVE-2026-45560 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-45560 being exploited in the wild.

**How severe is CVE-2026-45560?** Medium severity, with a CVSS score of 6.1, published 10 June 2026.

**Which products and versions are affected?** Roxy-WI <= 8.2.6.4.

**Is there a fix for CVE-2026-45560?** 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-2026-45560 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-45560?** Check whether you run Roxy-WI 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 stored cross-site scripting (XSS) vulnerability exists in Roxy-WI versions 8.2.6.4 and prior. The functions 'wrap_line' and 'highlight_word' in 'app/modules/common/common.py' generate raw HTML via string concatenation without performing output encoding or sanitization. Furthermore, the frontend uses jQuery's '.html()' and '.append()' methods to inject this unescaped data into the DOM. An unauthenticated attacker can trigger this by sending an HTTP request with a malicious payload (e.g., in the User-Agent header) to a managed HAProxy or Nginx instance. When an administrator views the logs via the Roxy-WI web interface, the payload executes. As of publication, no official patch is available; users are advised to manually implement HTML escaping using libraries like 'markupsafe'.

## Affected products

- Roxy-WI Roxy-WI <= 8.2.6.4

## Timeline

- 2026-05-15: advisory: GitHub Security Advisory published
- 2026-06-10: disclosed: CVE published to NVD

## References

- [https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-28m4-mmr2-83p6](https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-28m4-mmr2-83p6)

## Related threats

- [Roxy-WI path traversal in configuration management](https://junglewise.ai/threats/cve-2026-45569-roxy-wi-path-traversal-in-configuration-management)
- [Roxy-WI authentication bypass via URL substring manipulation](https://junglewise.ai/threats/cve-2026-45567-roxy-wi-authentication-bypass-via-url-substring-manipulation)
- [Roxy-WI open redirect in login flow via userinfo syntax bypass](https://junglewise.ai/threats/cve-2026-45566-roxy-wi-open-redirect-in-login-flow-via-userinfo-syntax-bypass)
- [Roxy-WI input validation bypass in EscapedString validator](https://junglewise.ai/threats/cve-2026-45565-roxy-wi-input-validation-bypass-in-escapedstring-validator)
- [Roxy-WI command injection in config versions save route](https://junglewise.ai/threats/cve-2026-45564-roxy-wi-command-injection-in-config-versions-save-route)