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's unsafe element creation that traversed the prototype chain.
Scoring
- Severity
- HIGH
- CVSS base score
- 8.5
- CVSS vector
- 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
- EPSS probability
- 0.18%
- CWE
- CWE-1321
- Published
- 2026-08-18
- Last modified
- 2026-08-19
Affected products
- Zabbix Zabbix
- Zabbix Zabbix
- Zabbix Zabbix
Weakness type
Related vulnerabilities
- CVE-2026-86078 — n8n: Prototype Pollution via Workflow Structure Summary Can Lead to Denial of Service
- CVE-2026-81994 — Acrobat Reader | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321)
- CVE-2026-85625 — sift 17.1.3 Prototype Pollution Remote Code Execution via $where
- CVE-2026-63376 — toml-node: Prototype Pollution Leads to `Object.prototype` Corruption via `__proto__` Key-Path Desynchronization
- CVE-2026-85063 — node-csv: Prototype replacement still reachable via columns path
- CVE-2026-82404 — TOON: Prototype pollution when decoding untrusted TOON input
- CVE-2026-84368 — joi: Prototype pollution via a `__proto__` language key in custom messages
- CVE-2026-84367 — joi: object().rename() with a template target can set the validated object's prototype