{"id":"CVE-2026-23921","state":"PUBLISHED","title":"Blind, read-only SQL injection in Zabbix API via sortfield parameter","description":"A low privilege Zabbix user with API access can exploit a blind SQL injection vulnerability in include/classes/api/CApiService.php to execute arbitrary SQL selects via the sortfield parameter. Although query results are not returned directly, an attacker can exfiltrate arbitrary database data through time-based techniques, potentially leading to session identifier disclosure and administrator account compromise.","publishedAt":"2026-03-24T18:28:41.491Z","updatedAt":"2026-03-26T03:55:36.177Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"Zabbix"},"assigner":"Zabbix","products":["Zabbix Zabbix"],"affected":[{"vendor":"Zabbix","product":"Zabbix","defaultStatus":"unknown","versions":[{"version":"7.0.0","status":"affected","lessThanOrEqual":"7.0.21","changes":[{"at":"7.0.22","status":"unaffected"}],"versionType":"git"},{"version":"7.2.0","status":"affected","lessThanOrEqual":"7.2.14","changes":[{"at":"7.2.15","status":"unaffected"}],"versionType":"git"},{"version":"7.4.0","status":"affected","lessThanOrEqual":"7.4.5","changes":[{"at":"7.4.6","status":"unaffected"}],"versionType":"git"}],"repo":"https://git.zabbix.com/","modules":["API"]}],"references":["https://support.zabbix.com/browse/ZBX-27640"],"weaknesses":["CWE-89"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23921.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23921","state":"PUBLISHED","datePublished":"2026-03-24T18:28:41.491Z","dateUpdated":"2026-03-26T03:55:36.177Z","assignerShortName":"Zabbix","assignerOrgId":"72de3e22-0555-4a0d-ae81-9249e0f0a1e8","dateReserved":"2026-01-19T14:02:54.327Z"},"containers":{"cna":{"title":"Blind, read-only SQL injection in Zabbix API via sortfield parameter","descriptions":[{"lang":"en","value":"A low privilege Zabbix user with API access can exploit a blind SQL injection vulnerability in include/classes/api/CApiService.php to execute arbitrary SQL selects via the sortfield parameter. Although query results are not returned directly, an attacker can exfiltrate arbitrary database data through time-based techniques, potentially leading to session identifier disclosure and administrator account compromise."}],"affected":[{"vendor":"Zabbix","product":"Zabbix","defaultStatus":"unknown","versions":[{"version":"7.0.0","status":"affected","lessThanOrEqual":"7.0.21","changes":[{"at":"7.0.22","status":"unaffected"}],"versionType":"git"},{"version":"7.2.0","status":"affected","lessThanOrEqual":"7.2.14","changes":[{"at":"7.2.15","status":"unaffected"}],"versionType":"git"},{"version":"7.4.0","status":"affected","lessThanOrEqual":"7.4.5","changes":[{"at":"7.4.6","status":"unaffected"}],"versionType":"git"}],"repo":"https://git.zabbix.com/","modules":["API"]}],"references":[{"url":"https://support.zabbix.com/browse/ZBX-27640"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","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":8.7,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-89","lang":"en","description":"CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')","type":"CWE"}]}],"providerMetadata":{"shortName":"Zabbix","orgId":"72de3e22-0555-4a0d-ae81-9249e0f0a1e8","dateUpdated":"2026-03-24T18:28:41.491Z"},"impacts":[{"capecId":"CAPEC-7","descriptions":[{"lang":"en","value":"CAPEC-7: Blind SQL Injection"}]}],"configurations":[{"lang":"en","value":"To exploit this vulnerability an attacker needs access to a Zabbix account with API access.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>To exploit this vulnerability an attacker needs access to a Zabbix account with API access.</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 SeaWind for submitting this report on the HackerOne bug bounty platform.","type":"reporter"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-25T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-23921"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-26T03:55:36.177Z"}}]}}}