{"id":"CVE-2026-87764","state":"PUBLISHED","title":"BuddyPress Instant Chat <= 1.6 - Unauthenticated Stored XSS via Chat Message","description":"The BuddyPress Instant Chat WordPress plugin through 1.6 does not check that the sender of a chat message belongs to the conversation it is being added to, nor does it escape message content before outputting it back, allowing unauthenticated users to store arbitrary web scripts that will execute in the session of any member who later views that conversation.","publishedAt":"2026-10-11T06:00:15.559Z","updatedAt":"2026-10-11T11:32:43.245Z","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 BuddyPress Instant Chat"],"affected":[{"vendor":"Unknown","product":"BuddyPress Instant Chat","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.6","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/4c8836ae-5a1f-48ca-96fd-50a85e014cf6/"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/87xxx/CVE-2026-87764.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-87764","state":"PUBLISHED","datePublished":"2026-10-11T06:00:15.559Z","dateUpdated":"2026-10-11T11:32:43.245Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-09-09T07:22:46.726Z"},"containers":{"cna":{"title":"BuddyPress Instant Chat <= 1.6 - Unauthenticated Stored XSS via Chat Message","descriptions":[{"lang":"en","value":"The BuddyPress Instant Chat WordPress plugin through 1.6 does not check that the sender of a chat message belongs to the conversation it is being added to, nor does it escape message content before outputting it back, allowing unauthenticated users to store arbitrary web scripts that will execute in the session of any member who later views that conversation."}],"affected":[{"vendor":"Unknown","product":"BuddyPress Instant Chat","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.6","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/4c8836ae-5a1f-48ca-96fd-50a85e014cf6/","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":"2026-10-11T06:00:15.559Z"},"credits":[{"lang":"en","value":"Pablo González Pérez","type":"finder"},{"lang":"en","value":"Francisco José Ramírez Vicente","type":"finder"},{"lang":"en","value":"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-2026-87764","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2026-10-11T11:21:03.198681Z"}}}],"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":"2026-10-11T11:32:43.245Z"}}]}}}