{"id":"CVE-2026-87760","state":"PUBLISHED","title":"Web Vitals Tracking <= 5.4.2 - Unauthenticated Stored XSS via Tracking Beacon Metric Name","description":"The Web Vitals Tracking WordPress plugin through 5.4.2 does not validate or escape performance measurements submitted by unauthenticated visitors before storing them and outputting them in a script context on an administrative page, allowing unauthenticated attackers to perform Stored Cross-Site Scripting attacks against administrators.","publishedAt":"2026-10-11T06:00:15.037Z","updatedAt":"2026-10-11T11:32:43.617Z","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 Web Vitals Tracking"],"affected":[{"vendor":"Unknown","product":"Web Vitals Tracking","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"5.4.2","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/c6250c43-42c5-4c76-9eb9-2b35ba461e8c/"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/87xxx/CVE-2026-87760.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-87760","state":"PUBLISHED","datePublished":"2026-10-11T06:00:15.037Z","dateUpdated":"2026-10-11T11:32:43.617Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-09-09T07:22:39.450Z"},"containers":{"cna":{"title":"Web Vitals Tracking <= 5.4.2 - Unauthenticated Stored XSS via Tracking Beacon Metric Name","descriptions":[{"lang":"en","value":"The Web Vitals Tracking WordPress plugin through 5.4.2 does not validate or escape performance measurements submitted by unauthenticated visitors before storing them and outputting them in a script context on an administrative page, allowing unauthenticated attackers to perform Stored Cross-Site Scripting attacks against administrators."}],"affected":[{"vendor":"Unknown","product":"Web Vitals Tracking","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"5.4.2","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/c6250c43-42c5-4c76-9eb9-2b35ba461e8c/","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":"2026-10-11T06:00:15.037Z"},"credits":[{"lang":"en","value":"Pablo González Pérez","type":"finder"},{"lang":"en","value":"Francisco José Ramírez Vicente and Iñigo Sánchez Enciso","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-2026-87760","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2026-10-11T11:22:54.651605Z"}}}],"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":"2026-10-11T11:32:43.617Z"}}]}}}