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MEDIUM · 5.4

CVE-2026-23929

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...

Vulnerability 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.

CVSS Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE

Affected Products

VendorProductVersions
ZabbixZabbix>= 6.0.0, < 6.0.46

Related Weaknesses (CWE)

CWE-1321

References

FAQ

What is CVE-2026-23929?

CVE-2026-23929 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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...

How severe is CVE-2026-23929?

CVE-2026-23929 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-23929?

Check the references section above for vendor advisories and patch information. Affected products include: Zabbix Zabbix.