{"id":"CVE-2026-23931","state":"PUBLISHED","title":"Frontend plaintext macro value enumeration via the validatate.api.exists action","description":"The frontend validatate.api.exists action can be exploited by authenticated users to extract plaintext user macro values leading to potential loss of confidentiality.","publishedAt":"2026-08-18T12:17:38.536Z","updatedAt":"2026-08-18T13:35:23.212Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","source":"Zabbix"},"assigner":"Zabbix","products":["Zabbix Zabbix"],"affected":[{"vendor":"Zabbix","product":"Zabbix","defaultStatus":"unknown","versions":[{"version":"7.4.0","status":"affected","lessThanOrEqual":"7.4.10","changes":[{"at":"7.4.11","status":"unaffected"}],"versionType":"git"}],"repo":"https://git.zabbix.com/","modules":["Frontend"]}],"references":["https://support.zabbix.com/browse/ZBX-28070"],"weaknesses":["CWE-203"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23931.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23931","state":"PUBLISHED","datePublished":"2026-08-18T12:17:38.536Z","dateUpdated":"2026-08-18T13:35:23.212Z","assignerShortName":"Zabbix","assignerOrgId":"72de3e22-0555-4a0d-ae81-9249e0f0a1e8","dateReserved":"2026-01-19T14:03:13.686Z"},"containers":{"cna":{"title":"Frontend plaintext macro value enumeration via the validatate.api.exists action","descriptions":[{"lang":"en","value":"The frontend validatate.api.exists action can be exploited by authenticated users to extract plaintext user macro values leading to potential loss of confidentiality."}],"affected":[{"vendor":"Zabbix","product":"Zabbix","defaultStatus":"unknown","versions":[{"version":"7.4.0","status":"affected","lessThanOrEqual":"7.4.10","changes":[{"at":"7.4.11","status":"unaffected"}],"versionType":"git"}],"repo":"https://git.zabbix.com/","modules":["Frontend"]}],"references":[{"url":"https://support.zabbix.com/browse/ZBX-28070"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","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":"MEDIUM","baseScore":5.3,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-203","lang":"en","description":"CWE-203: Observable Discrepancy","type":"CWE"}]}],"providerMetadata":{"shortName":"Zabbix","orgId":"72de3e22-0555-4a0d-ae81-9249e0f0a1e8","dateUpdated":"2026-08-18T12:17:38.536Z"},"impacts":[{"capecId":"CAPEC-122","descriptions":[{"lang":"en","value":"CAPEC-122: Privilege Abuse"}]}],"configurations":[{"lang":"en","value":"An authenticated user sending crafted HTTP requests to Zabbix Frontend.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>An authenticated user sending crafted HTTP requests to Zabbix Frontend.</p>"}]}],"workarounds":[{"lang":"en","value":"Macro values with the 'Secret text' or 'Vault secret' types are not affected.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>Macro values with the 'Secret text' or 'Vault secret' types are not affected.</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 nidomer1 for submitting this report on the HackerOne bug bounty platform.","type":"reporter"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.4"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-18T12:51:05.390981Z","id":"CVE-2026-23931","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-18T13:35:23.212Z"}}]}}}