{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/218129?format=json","vulnerability_id":"VCID-83jx-ejpc-1kdq","summary":"Sydent is a reference matrix identity server. A malicious user could abuse Sydent to send out arbitrary emails from the Sydent email address. This could be used to construct plausible phishing emails, for example. This issue has been fixed in 4469d1d.","aliases":[{"alias":"CVE-2021-29432"},{"alias":"GHSA-mh74-4m5g-fcjx"},{"alias":"PYSEC-2021-23"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/64100?format=json","purl":"pkg:pypi/matrix-sydent@2.3.0","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-qv9q-g8dy-wuda"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-sydent@2.3.0"}],"affected_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/64096?format=json","purl":"pkg:pypi/matrix-sydent@2.0.0","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-2t4j-nm56-tkgm"},{"vulnerability":"VCID-6ydp-qbur-zkcw"},{"vulnerability":"VCID-83jx-ejpc-1kdq"},{"vulnerability":"VCID-ckar-nhrw-uuhn"},{"vulnerability":"VCID-qv9q-g8dy-wuda"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-sydent@2.0.0"},{"url":"http://public2.vulnerablecode.io/api/packages/64097?format=json","purl":"pkg:pypi/matrix-sydent@2.0.1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-2t4j-nm56-tkgm"},{"vulnerability":"VCID-6ydp-qbur-zkcw"},{"vulnerability":"VCID-83jx-ejpc-1kdq"},{"vulnerability":"VCID-ckar-nhrw-uuhn"},{"vulnerability":"VCID-qv9q-g8dy-wuda"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-sydent@2.0.1"},{"url":"http://public2.vulnerablecode.io/api/packages/64098?format=json","purl":"pkg:pypi/matrix-sydent@2.1.0","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-2t4j-nm56-tkgm"},{"vulnerability":"VCID-6ydp-qbur-zkcw"},{"vulnerability":"VCID-83jx-ejpc-1kdq"},{"vulnerability":"VCID-ckar-nhrw-uuhn"},{"vulnerability":"VCID-qv9q-g8dy-wuda"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-sydent@2.1.0"},{"url":"http://public2.vulnerablecode.io/api/packages/64099?format=json","purl":"pkg:pypi/matrix-sydent@2.2.0","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-2t4j-nm56-tkgm"},{"vulnerability":"VCID-6ydp-qbur-zkcw"},{"vulnerability":"VCID-83jx-ejpc-1kdq"},{"vulnerability":"VCID-ckar-nhrw-uuhn"},{"vulnerability":"VCID-qv9q-g8dy-wuda"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-sydent@2.2.0"}],"references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-29432","reference_id":"","reference_type":"","scores":[{"value":"0.0025","scoring_system":"epss","scoring_elements":"0.48626","published_at":"2026-06-11T12:55:00Z"},{"value":"0.0025","scoring_system":"epss","scoring_elements":"0.48763","published_at":"2026-06-12T12:55:00Z"},{"value":"0.0025","scoring_system":"epss","scoring_elements":"0.48782","published_at":"2026-06-13T12:55:00Z"},{"value":"0.0025","scoring_system":"epss","scoring_elements":"0.48769","published_at":"2026-06-14T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-29432"},{"reference_url":"https://github.com/matrix-org/sydent/commit/4469d1d42b2b1612b70638224c07e19623039c42","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"6.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/matrix-org/sydent/commit/4469d1d42b2b1612b70638224c07e19623039c42"},{"reference_url":"https://github.com/matrix-org/sydent/releases/tag/v2.3.0","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"6.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/matrix-org/sydent/releases/tag/v2.3.0"},{"reference_url":"https://github.com/matrix-org/sydent/security/advisories/GHSA-mh74-4m5g-fcjx","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"6.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/matrix-org/sydent/security/advisories/GHSA-mh74-4m5g-fcjx"},{"reference_url":"https://github.com/pypa/advisory-database/tree/main/vulns/matrix-sydent/PYSEC-2021-23.yaml","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"6.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"},{"value":"MODERATE","scor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Input Validation","description":"The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly."},{"cwe_id":937,"name":"OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities","description":"Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2013."},{"cwe_id":1035,"name":"OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities","description":"Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017."}],"exploits":[],"severity_range_score":"4.0 - 6.9","exploitability":"0.5","weighted_severity":"6.2","risk_score":3.1,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-83jx-ejpc-1kdq"}