# CVE-2026-59666: Repasat business management software XSS vulnerabilities

Source: https://junglewise.ai/threats/cve-2026-59666-cross-site-scripting-vulnerability-in-the-repasat-application  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-02. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-59666 · Severity: info · Published 2026-10-02

Repasat is business management software that consolidates multiple business operations onto a single platform. Multiple cross-site scripting (XSS) vulnerabilities in the application could allow attackers to trick users into executing arbitrary code in their browsers, potentially leading to account compromise, data theft, or malware installation.

Technologies: [Repasat](https://junglewise.ai/threats/technologies/repasat). Vendors: [Repasat](https://junglewise.ai/threats/vendors/repasat).

## Quick answers

**Is CVE-2026-59666 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-59666 being exploited in the wild.

**How severe is CVE-2026-59666?** Informational severity, published 2 October 2026.

**Which products and versions are affected?** Repasat before April 2026 patch (20260402).

**Is there a fix for CVE-2026-59666?** Yes: fixed in April patch version 20260402. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-59666 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-59666?** Check whether you run Repasat 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.

## How to fix

- Fixed in April patch version 20260402

## Technical details

Fifteen separate cross-site scripting vulnerabilities exist in various endpoints and parameters of the Repasat application, all classified as CWE-79. Exploitation requires network access, authenticated user session, and user interaction (clicking a malicious link). Successful exploitation allows arbitrary JavaScript execution in the victim's browser with the privileges of the authenticated user.

## Affected products

- Repasat Repasat before April 2026 patch (20260402)

## Timeline

- 2026-10-02: disclosed

## References

- [https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-repasat-application](https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-repasat-application)

## Related threats

- [Repasat application cross-site scripting in company size parameter](https://junglewise.ai/threats/cve-2026-59668-cross-site-scripting-vulnerability-in-the-repasat-application)
- [Repasat cross-site scripting in company size employees endpoint](https://junglewise.ai/threats/cve-2026-59667-cross-site-scripting-vulnerability-in-the-repasat-application)
- [Repasat cross-site scripting in parameters](https://junglewise.ai/threats/cve-2026-95662-cross-site-scripting-vulnerability-in-the-repasat-application)
- [Repasat multiple cross-site scripting vulnerabilities](https://junglewise.ai/threats/cve-2026-59673-cross-site-scripting-vulnerability-in-the-repasat-application)
- [Repasat cross-site scripting in corporate group management](https://junglewise.ai/threats/cve-2026-59672-cross-site-scripting-vulnerability-in-the-repasat-application)