CVE-2026-23929 is a vulnerability in Zabbix
Published on August 18, 2026
Prototype pollution leading to stored XSS
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.
Vulnerability Analysis
CVE-2026-23929 can be exploited with network access. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is a Prototype Pollution Vulnerability?
The software receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.
CVE-2026-23929 has been classified to as a Prototype Pollution vulnerability or weakness.
Products Associated with CVE-2026-23929
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Affected Versions
Zabbix:- Version 6.0.44, <= 6.0.45 is affected.
- Version 7.0.22, <= 7.0.24 is affected.
- Version 7.4.6, <= 7.4.8 is affected.