{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23929","assignerOrgId":"72de3e22-0555-4a0d-ae81-9249e0f0a1e8","state":"PUBLISHED","assignerShortName":"Zabbix","dateReserved":"2026-01-19T14:03:13.686Z","datePublished":"2026-08-18T12:16:15.322Z","dateUpdated":"2026-08-19T03:55:58.598Z"},"containers":{"cna":{"providerMetadata":{"orgId":"72de3e22-0555-4a0d-ae81-9249e0f0a1e8","shortName":"Zabbix","dateUpdated":"2026-08-18T12:16:15.322Z"},"title":"Prototype pollution leading to stored XSS","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-1321","description":"CWE-1321: Improperly Controlled Modification of Object Prototype Attributes (\"Prototype Pollution\")","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-173","descriptions":[{"lang":"en","value":"CAPEC-173: Pollution of Data Structure / Property Injection"}]}],"affected":[{"vendor":"Zabbix","product":"Zabbix","repo":"https://git.zabbix.com/","modules":["Frontend"],"versions":[{"status":"affected","version":"6.0.44","lessThanOrEqual":"6.0.45","changes":[{"at":"6.0.46","status":"unaffected"}],"versionType":"git"},{"status":"affected","version":"7.0.22","lessThanOrEqual":"7.0.24","changes":[{"at":"7.0.25","status":"unaffected"}],"versionType":"git"},{"status":"affected","version":"7.4.6","lessThanOrEqual":"7.4.8","changes":[{"at":"7.4.9","status":"unaffected"}],"versionType":"git"}],"defaultStatus":"unknown"}],"descriptions":[{"lang":"en","value":"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.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>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.</p>"}]}],"references":[{"url":"https://support.zabbix.com/browse/ZBX-28068"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"ACTIVE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":8.5,"vectorString":"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"}}],"configurations":[{"lang":"en","value":"An authenticated Zabbix user could inject the malicious HTML into the Zabbix UI (Map page).","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>An authenticated Zabbix user could inject the malicious HTML into the Zabbix UI (Map page).</p>"}]}],"solutions":[{"lang":"en","value":"Update the affected components to their respective fixed versions.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>Update the affected components to their respective fixed versions.</p>"}]}],"credits":[{"lang":"en","value":"Zabbix wants to thank Perce, 6o_o9 and Nassim BETTACH @Shenron for submitting this report on the HackerOne bug bounty platform.","type":"reporter"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.4"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-18T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-23929"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-19T03:55:58.598Z"}}]}}