{"id":"CVE-2026-88903","state":"PUBLISHED","title":"Topcontent <= 1.2.1 - Unauthenticated Stored XSS via Content Webhook","description":"The Topcontent WordPress plugin through 1.2.1 does not properly authorise one of its request handlers and disables HTML sanitisation before storing the submitted content, allowing unauthenticated attackers to publish arbitrary posts containing malicious JavaScript on any site where its API key has never been configured.","publishedAt":"2026-10-11T06:00:16.273Z","updatedAt":"2026-10-11T11:32:42.722Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"WPScan","products":["Unknown Topcontent"],"affected":[{"vendor":"Unknown","product":"Topcontent","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.2.1","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/173b07dd-6404-49c0-9e01-90b5b68d1dec/"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/88xxx/CVE-2026-88903.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-88903","state":"PUBLISHED","datePublished":"2026-10-11T06:00:16.273Z","dateUpdated":"2026-10-11T11:32:42.722Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-09-10T12:14:29.360Z"},"containers":{"cna":{"title":"Topcontent <= 1.2.1 - Unauthenticated Stored XSS via Content Webhook","descriptions":[{"lang":"en","value":"The Topcontent WordPress plugin through 1.2.1 does not properly authorise one of its request handlers and disables HTML sanitisation before storing the submitted content, allowing unauthenticated attackers to publish arbitrary posts containing malicious JavaScript on any site where its API key has never been configured."}],"affected":[{"vendor":"Unknown","product":"Topcontent","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.2.1","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/173b07dd-6404-49c0-9e01-90b5b68d1dec/","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":"2026-10-11T06:00:16.273Z"},"credits":[{"lang":"en","value":"Naoki Kawahigashi","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":8.8,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"id":"CVE-2026-88903","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2026-10-11T11:20:16.185589Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","type":"CWE","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":"2026-10-11T11:32:42.722Z"}}]}}}