# CVE-2026-102396: Supsystic Ultimate Maps cross-site scripting

Source: https://junglewise.ai/threats/cve-2026-102396-unauthenticated-cross-site-scripting-xss-in-ultimate-maps-by  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-30. Updated: 2026-09-30  
License: CC BY 4.0 with a link back

CVE-2026-102396 · Severity: high · CVSS 7.1 · Published 2026-09-30

Ultimate Maps by Supsystic is a WordPress plugin that creates interactive maps on websites. An unauthenticated attacker can inject malicious scripts through the plugin that execute in visitors' browsers, enabling account hijacking, credential theft, or data exfiltration. Successful exploitation requires user interaction (clicking a crafted link or visiting a malicious page), but any website visitor could be targeted at scale.

Technologies: [Supsystic Ultimate Maps](https://junglewise.ai/threats/technologies/ultimate-maps). Vendors: [Supsystic](https://junglewise.ai/threats/vendors/supsystic).

## Quick answers

**Is CVE-2026-102396 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-102396 being exploited in the wild.

**How severe is CVE-2026-102396?** High severity, with a CVSS score of 7.1, published 30 September 2026.

**Which products and versions are affected?** Supsystic Ultimate Maps <= 1.5.5.

**Is there a fix for CVE-2026-102396?** A patch was published on 2026-09-30: version 1.6.1 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-102396 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-102396?** Check whether you run Supsystic Ultimate Maps 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

Unauthenticated cross-site scripting (XSS) vulnerability in Ultimate Maps by Supsystic versions <= 1.5.5 resulting from improper input validation or output encoding. Attack is network-based, requires no authentication, but depends on user interaction (visiting a crafted page or clicking a malicious link). An attacker can steal session cookies, hijack accounts, or redirect users to phishing sites. The vulnerability is fixed in version 1.6.1.

## Affected products

- Supsystic Ultimate Maps <= 1.5.5

## Timeline

- 2026-09-30: disclosed
- 2026-09-30: patched: version 1.6.1 released

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/ultimate-maps-by-supsystic/vulnerability/wordpress-ultimate-maps-by-supsystic-plugin-1-5-5-cross-site-scripting-xss-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/ultimate-maps-by-supsystic/vulnerability/wordpress-ultimate-maps-by-supsystic-plugin-1-5-5-cross-site-scripting-xss-vulnerability?_s_id=cve)

## Related threats

- [Supsystic Ultimate Maps broken access control](https://junglewise.ai/threats/cve-2026-102397-unauthenticated-broken-access-control-in-ultimate-maps-by)
- [Supsystic Ultimate Maps broken access control vulnerability](https://junglewise.ai/threats/cve-2026-85309-supsystic-ultimate-maps-broken-access-control-vulnerability)
- [Supsystic Ultimate Maps SQL injection in sidx parameter](https://junglewise.ai/threats/cve-2020-37242-supsystic-ultimate-maps-sql-injection-in-sidx-parameter)