{"id":"CVE-2026-77643","state":"PUBLISHED","title":"A cross-site scripting vulnerability in ","description":"A cross-site scripting vulnerability in \nqueryparser/termgenerator_internal.cc in Xapian xapian-core before 2.1.0 and before 1.4.32 exists due to incomplete HTML escaping by Xapian::MSet::snippet(). NOTE: this issue exists because of a missed corner case of CVE-2018-0499.","publishedAt":"2026-08-20T21:23:31.317Z","updatedAt":"2026-08-28T18:08:32.929Z","severity":{"score":4.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N","source":"mitre"},"assigner":"mitre","products":["Xapian xapian-core"],"affected":[{"vendor":"Xapian","product":"xapian-core","defaultStatus":"unaffected","versions":[{"version":"2.0.0","status":"affected","lessThan":"2.1.0","versionType":"semver"},{"version":"0","status":"affected","lessThan":"1.4.32","versionType":"semver"}]}],"references":["https://bugs.debian.org/1144490","https://lists.xapian.org/pipermail/xapian-devel/2026-August/003429.html","https://trac.xapian.org/wiki/SecurityFixes/2018-07-02#a2026-08-13update"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/77xxx/CVE-2026-77643.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-77643","state":"PUBLISHED","datePublished":"2026-08-20T21:23:31.317Z","dateUpdated":"2026-08-28T18:08:32.929Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2026-08-20T21:23:30.985Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A cross-site scripting vulnerability in \nqueryparser/termgenerator_internal.cc in Xapian xapian-core before 2.1.0 and before 1.4.32 exists due to incomplete HTML escaping by Xapian::MSet::snippet(). NOTE: this issue exists because of a missed corner case of CVE-2018-0499."}],"affected":[{"vendor":"Xapian","product":"xapian-core","defaultStatus":"unaffected","versions":[{"version":"2.0.0","status":"affected","lessThan":"2.1.0","versionType":"semver"},{"version":"0","status":"affected","lessThan":"1.4.32","versionType":"semver"}]}],"references":[{"url":"https://bugs.debian.org/1144490"},{"url":"https://lists.xapian.org/pipermail/xapian-devel/2026-August/003429.html"},{"url":"https://trac.xapian.org/wiki/SecurityFixes/2018-07-02#a2026-08-13update"}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2026-08-20T21:23:31.317Z"},"x_generator":{"engine":"CVE-Request-form 0.0.1"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:xapian:xapian-core:*:*:*:*:*:*:*:*","versionStartIncluding":"2.0.0","versionEndExcluding":"2.1.0"},{"vulnerable":true,"criteria":"cpe:2.3:a:xapian:xapian-core:*:*:*:*:*:*:*:*","versionEndExcluding":"1.4.32"}]}]}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-28T18:08:22.966488Z","id":"CVE-2026-77643","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-28T18:08:32.929Z"}}]}}}