FKIE_CVE-2026-77643

Vulnerability from fkie_nvd - Published: 2026-08-20 22:18 - Updated: 2026-09-09 16:04
Severity
4.4 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N
Summary
A cross-site scripting vulnerability in queryparser/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.
References
cve@mitre.orghttps://bugs.debian.org/1144490
cve@mitre.orghttps://lists.xapian.org/pipermail/xapian-devel/2026-August/003429.html
cve@mitre.orghttps://trac.xapian.org/wiki/SecurityFixes/2018-07-02#a2026-08-13update
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "xapian-core",
          "vendor": "Xapian",
          "versions": [
            {
              "lessThan": "2.1.0",
              "status": "affected",
              "version": "2.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.4.32",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "cveTags": [],
  "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\u00a0CVE-2018-0499."
    }
  ],
  "id": "CVE-2026-77643",
  "lastModified": "2026-09-09T16:04:24.933",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 1.3,
        "impactScore": 2.7,
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-77643",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-28T18:08:22.966488Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-20T22:18:06.207",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://bugs.debian.org/1144490"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://lists.xapian.org/pipermail/xapian-devel/2026-August/003429.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://trac.xapian.org/wiki/SecurityFixes/2018-07-02#a2026-08-13update"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "cve@mitre.org",
      "type": "Secondary"
    }
  ]
}



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