{"id":"CVE-2026-88997","state":"PUBLISHED","title":"JSM Show Post Metadata < 4.9.1 - Contributor+ Stored XSS via Custom Field Meta Key","description":"The JSM Show Post Metadata WordPress plugin before 4.9.1 does not properly escape a post meta key before outputting it into an inline event-handler attribute in an admin-facing meta box, allowing users with contributor-level access and above to inject arbitrary JavaScript that executes in the session of a higher-privileged user who reviews the affected post.","publishedAt":"2026-09-23T06:00:21.546Z","updatedAt":"2026-09-23T10:53:26.953Z","severity":{"score":6.8,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"WPScan","products":["Unknown JSM Show Post Metadata"],"affected":[{"vendor":"Unknown","product":"JSM Show Post Metadata","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"4.9.1","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/1699d3aa-29ca-4197-8e3b-0b03ecce751a/"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/88xxx/CVE-2026-88997.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-88997","state":"PUBLISHED","datePublished":"2026-09-23T06:00:21.546Z","dateUpdated":"2026-09-23T10:53:26.953Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-09-10T16:07:55.530Z"},"containers":{"cna":{"title":"JSM Show Post Metadata < 4.9.1 - Contributor+ Stored XSS via Custom Field Meta Key","descriptions":[{"lang":"en","value":"The JSM Show Post Metadata WordPress plugin before 4.9.1 does not properly escape a post meta key before outputting it into an inline event-handler attribute in an admin-facing meta box, allowing users with contributor-level access and above to inject arbitrary JavaScript that executes in the session of a higher-privileged user who reviews the affected post."}],"affected":[{"vendor":"Unknown","product":"JSM Show Post Metadata","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"4.9.1","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/1699d3aa-29ca-4197-8e3b-0b03ecce751a/","tags":["exploit","vdb-entry","technical-description"]}],"problemTypes":[{"descriptions":[{"description":"CWE-79 Cross-Site Scripting (XSS)","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-09-23T06:00:21.546Z"},"credits":[{"lang":"en","value":"pervinzahidli","type":"finder"},{"lang":"en","value":"WPScan","type":"coordinator"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"WPScan CVE Generator"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.8,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"HIGH","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-09-23T10:38:22.858441Z","id":"CVE-2026-88997","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","type":"CWE","lang":"en","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-23T10:53:26.953Z"}}]}}}