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CVE-2026-3455

Versions of the package mailparser before 3.9.3 are vulnerable to Cross-site Scripting (XSS) via the textToHtml() function due to the improper sanitisation of URLs in the email content. An attacker can execute arbitrary scripts in victim browsers by adding extra quote " to the URL with embedded malicious JavaScript code.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:37556d74afe5424e44d7e383825bb0c92c830a61c01270a3764ea8aae7804fe9
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"ACTIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N/E:P","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:aedcc771321f5834734ff284a15498195aa5e05837a3bccf0a85e3c3518b31f6 · sha256:2ae69ad39e2e84d5… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","exploitCodeMaturity":"PROOF_OF_CONCEPT","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:aedcc771321f5834734ff284a15498195aa5e05837a3bccf0a85e3c3518b31f6 · sha256:2ae69ad39e2e84d5… · /containers/cna/metrics/0/cvssV3_1

Affected products and versions

1 source assertion
{"product":"mailparser","vendor":"n/a","versions":[{"lessThan":"3.9.3","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:aedcc771321f5834734ff284a15498195aa5e05837a3bccf0a85e3c3518b31f6 · sha256:2ae69ad39e2e84d5… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"ACTIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N/E:P","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:aedcc771321f5834734ff284a15498195aa5e05837a3bccf0a85e3c3518b31f6 · sha256:2ae69ad39e2e84d5… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","exploitCodeMaturity":"PROOF_OF_CONCEPT","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:aedcc771321f5834734ff284a15498195aa5e05837a3bccf0a85e3c3518b31f6 · sha256:2ae69ad39e2e84d5… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-79","description":"Cross-site Scripting (XSS)","lang":"en"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:aedcc771321f5834734ff284a15498195aa5e05837a3bccf0a85e3c3518b31f6 · sha256:2ae69ad39e2e84d5… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"url":"https://gist.github.com/hayageek/7fcb225e3b1ea9a341d560403fbb585a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:aedcc771321f5834734ff284a15498195aa5e05837a3bccf0a85e3c3518b31f6 · sha256:2ae69ad39e2e84d5… · /containers/cna/references/2
{"url":"https://github.com/nodemailer/mailparser/commit/921a67df4cfb38f0b411037d7b26fbd4d5411b08"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:aedcc771321f5834734ff284a15498195aa5e05837a3bccf0a85e3c3518b31f6 · sha256:2ae69ad39e2e84d5… · /containers/cna/references/1
{"url":"https://github.com/nodemailer/mailparser/issues/412"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:aedcc771321f5834734ff284a15498195aa5e05837a3bccf0a85e3c3518b31f6 · sha256:2ae69ad39e2e84d5… · /containers/cna/references/3
{"url":"https://security.snyk.io/vuln/SNYK-JS-MAILPARSER-15204032"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:aedcc771321f5834734ff284a15498195aa5e05837a3bccf0a85e3c3518b31f6 · sha256:2ae69ad39e2e84d5… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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