{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-21430","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2025-12-29T03:00:29.274Z","datePublished":"2026-01-02T18:44:24.192Z","dateUpdated":"2026-01-05T20:38:09.299Z"},"containers":{"cna":{"title":"Emlog: CSRF chained with stored XSS leads to ATO","problemTypes":[{"descriptions":[{"cweId":"CWE-352","lang":"en","description":"CWE-352: Cross-Site Request Forgery (CSRF)","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"HIGH","subAvailabilityImpact":"NONE","baseScore":7,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/E:P","version":"4.0"}}],"references":[{"name":"https://github.com/emlog/emlog/security/advisories/GHSA-2g2w-vmg7-pq4q","tags":["x_refsource_CONFIRM"],"url":"https://github.com/emlog/emlog/security/advisories/GHSA-2g2w-vmg7-pq4q"}],"affected":[{"vendor":"emlog","product":"emlog","versions":[{"version":"= 2.5.23","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-01-02T18:44:24.192Z"},"descriptions":[{"lang":"en","value":"Emlog is an open source website building system. In version 2.5.23, article creation functionality is vulnerable to cross-site request forgery (CSRF). This can lead to a user being forced to post an article with arbitrary, attacker-controlled content. This, when combined with stored cross-site scripting, leads to account takeover. As of time of publication, no known patched versions are available."}],"source":{"advisory":"GHSA-2g2w-vmg7-pq4q","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-05T20:32:31.928774Z","id":"CVE-2026-21430","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-01-05T20:38:09.299Z"}}]}}