# CVE-2026-23929

## Summary

- **CVE ID:** CVE-2026-23929
- **Severity:** HIGH
- **CVSS Score:** 8.5 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-1321
- **Published:** Aug 18, 2026
- **Last Modified:** Aug 19, 2026

## Description

Prototype pollution vulnerability in searchParamsToObject() is leading to a persistent XSS in Maps. URL parameter processing was not filtering dangerous properties like __proto__, combined with jQuery's unsafe element creation that traversed the prototype chain.

## Affected Products

- Zabbix — Zabbix (6.0.44)
- Zabbix — Zabbix (7.0.22)
- Zabbix — Zabbix (7.4.6)

## References

- [CNA](https://support.zabbix.com/browse/ZBX-28068)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.18%
- **EPSS Percentile:** 7.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._