CVE-2020-7776

{"containers": {"cna": {"affected": [{"product": "phpoffice/phpspreadsheet", "vendor": "n/a", "versions": [{"lessThan": "unspecified", "status": "affected", "version": "0.0.0", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Nikkolai Fernandez"}], "datePublic": "2020-12-09T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "This affects the package phpoffice/phpspreadsheet from 0.0.0. The library is vulnerable to XSS when creating an html output from an excel file by adding a comment on any cell. The root cause of this issue is within the HTML writer where user comments are concatenated as part of link and this is returned as HTML. A fix for this issue is available on commit 0ed5b800be2136bcb8fa9c1bdf59abc957a98845/master branch."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "exploitCodeMaturity": "PROOF_OF_CONCEPT", "integrityImpact": "LOW", "privilegesRequired": "LOW", "remediationLevel": "OFFICIAL_FIX", "reportConfidence": "CONFIRMED", "scope": "UNCHANGED", "temporalScore": 6.4, "temporalSeverity": "MEDIUM", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N/E:P/RL:O/RC:C", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"description": "Cross-site Scripting (XSS)", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2020-12-11T03:43:41.000Z", "orgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730", "shortName": "snyk"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://snyk.io/vuln/SNYK-PHP-PHPOFFICEPHPSPREADSHEET-1048856"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/PHPOffice/PhpSpreadsheet/commit/0ed5b800be2136bcb8fa9c1bdf59abc957a98845"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/PHPOffice/PhpSpreadsheet/blob/master/src/PhpSpreadsheet/Writer/Html.php%23L1792"}], "title": "Cross-site Scripting (XSS)", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "report@snyk.io", "DATE_PUBLIC": "2020-12-09T16:40:08.254495Z", "ID": "CVE-2020-7776", "STATE": "PUBLIC", "TITLE": "Cross-site Scripting (XSS)"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "phpoffice/phpspreadsheet", "version": {"version_data": [{"version_affected": ">=", "version_value": "0.0.0"}]}}]}, "vendor_name": "n/a"}]}}, "credit": [{"lang": "eng", "value": "Nikkolai Fernandez"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "This affects the package phpoffice/phpspreadsheet from 0.0.0. The library is vulnerable to XSS when creating an html output from an excel file by adding a comment on any cell. The root cause of this issue is within the HTML writer where user comments are concatenated as part of link and this is returned as HTML. A fix for this issue is available on commit 0ed5b800be2136bcb8fa9c1bdf59abc957a98845/master branch."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N/E:P/RL:O/RC:C", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Cross-site Scripting (XSS)"}]}]}, "references": {"reference_data": [{"name": "https://snyk.io/vuln/SNYK-PHP-PHPOFFICEPHPSPREADSHEET-1048856", "refsource": "MISC", "url": "https://snyk.io/vuln/SNYK-PHP-PHPOFFICEPHPSPREADSHEET-1048856"}, {"name": "https://github.com/PHPOffice/PhpSpreadsheet/commit/0ed5b800be2136bcb8fa9c1bdf59abc957a98845", "refsource": "MISC", "url": "https://github.com/PHPOffice/PhpSpreadsheet/commit/0ed5b800be2136bcb8fa9c1bdf59abc957a98845"}, {"name": "https://github.com/PHPOffice/PhpSpreadsheet/blob/master/src/PhpSpreadsheet/Writer/Html.php%23L1792", "refsource": "MISC", "url": "https://github.com/PHPOffice/PhpSpreadsheet/blob/master/src/PhpSpreadsheet/Writer/Html.php%23L1792"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T09:41:01.607Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://snyk.io/vuln/SNYK-PHP-PHPOFFICEPHPSPREADSHEET-1048856"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/PHPOffice/PhpSpreadsheet/commit/0ed5b800be2136bcb8fa9c1bdf59abc957a98845"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/PHPOffice/PhpSpreadsheet/blob/master/src/PhpSpreadsheet/Writer/Html.php%23L1792"}]}]}, "cveMetadata": {"assignerOrgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730", "assignerShortName": "snyk", "cveId": "CVE-2020-7776", "datePublished": "2020-12-09T16:45:18.358Z", "dateReserved": "2020-01-21T00:00:00.000Z", "dateUpdated": "2024-09-16T19:39:56.390Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"affected": [{"affectedData": [{"product": "phpoffice/phpspreadsheet", "vendor": "n/a", "versions": [{"lessThan": "unspecified", "status": "affected", "version": "0.0.0", "versionType": "custom"}]}], "source": "report@snyk.io"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:*", "matchCriteriaId": "8D823618-D958-409A-9F60-269B69E130A0", "versionEndExcluding": "1.16.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "This affects the package phpoffice/phpspreadsheet from 0.0.0. The library is vulnerable to XSS when creating an html output from an excel file by adding a comment on any cell. The root cause of this issue is within the HTML writer where user comments are concatenated as part of link and this is returned as HTML. A fix for this issue is available on commit 0ed5b800be2136bcb8fa9c1bdf59abc957a98845/master branch."}, {"lang": "es", "value": "Esto afecta al paquete phpoffice/phpspreadsheet desde la versi\u00f3n 0.0.0. La biblioteca es vulnerable a un ataque de tipo XSS cuando se crea una salida html desde un archivo de Excel al agregar un comentario en cualquier celda. La causa ra\u00edz de este problema est\u00e1 dentro del escritor de HTML, donde los comentarios de los usuarios est\u00e1n concatenados como parte del enlace y es devuelto como HTML. Una soluci\u00f3n para este problema est\u00e1 disponible en commit 0ed5b800be2136bcb8fa9c1bdf59abc957a98845/master branch."}], "id": "CVE-2020-7776", "lastModified": "2026-06-17T03:25:25.603", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 3.5, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 6.8, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.2, "source": "report@snyk.io", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-12-09T17:15:31.883", "references": [{"source": "report@snyk.io", "tags": ["Broken Link"], "url": "https://github.com/PHPOffice/PhpSpreadsheet/blob/master/src/PhpSpreadsheet/Writer/Html.php%23L1792"}, {"source": "report@snyk.io", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/PHPOffice/PhpSpreadsheet/commit/0ed5b800be2136bcb8fa9c1bdf59abc957a98845"}, {"source": "report@snyk.io", "tags": ["Exploit", "Third Party Advisory"], "url": "https://snyk.io/vuln/SNYK-PHP-PHPOFFICEPHPSPREADSHEET-1048856"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link"], "url": "https://github.com/PHPOffice/PhpSpreadsheet/blob/master/src/PhpSpreadsheet/Writer/Html.php%23L1792"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/PHPOffice/PhpSpreadsheet/commit/0ed5b800be2136bcb8fa9c1bdf59abc957a98845"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://snyk.io/vuln/SNYK-PHP-PHPOFFICEPHPSPREADSHEET-1048856"}], "sourceIdentifier": "report@snyk.io", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}