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CVE-2025-62366

mailgen is a Node.js package that generates responsive HTML e-mails for sending transactional mail. Mailgen versions through 2.0.30 contain an HTML injection vulnerability in plaintext emails produced by the generatePlaintext method when user‑generated content is supplied. The function attempts to remove HTML tags, but if tags are provided as encoded HTML entities they are not removed and are later decoded, resulting in active HTML (for example an img tag with an event handler) in the supposed p
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:19f44905f465e8e979e7f876fdd8f42ca3df69fe452eda0272e41637969b4fba
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"mailgen","vendor":"eladnava","versions":[{"status":"affected","version":"< 2.0.31"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1eaab6527866cb40dccef0fbcdcf7e97a21f954fd27ec0cb4a04da9db5433cbd · sha256:bef845e8dbbb8d79… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":2.9,"baseSeverity":"LOW","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1eaab6527866cb40dccef0fbcdcf7e97a21f954fd27ec0cb4a04da9db5433cbd · sha256:bef845e8dbbb8d79… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1eaab6527866cb40dccef0fbcdcf7e97a21f954fd27ec0cb4a04da9db5433cbd · sha256:bef845e8dbbb8d79… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/eladnava/mailgen/commit/7279a983481d05c51aa451e86146f98aaa42fee9","tags":["x_refsource_MISC"],"url":"https://github.com/eladnava/mailgen/commit/7279a983481d05c51aa451e86146f98aaa42fee9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1eaab6527866cb40dccef0fbcdcf7e97a21f954fd27ec0cb4a04da9db5433cbd · sha256:bef845e8dbbb8d79… · /containers/cna/references/1
{"name":"https://github.com/eladnava/mailgen/security/advisories/GHSA-xw6r-chmh-vpmj","tags":["x_refsource_CONFIRM"],"url":"https://github.com/eladnava/mailgen/security/advisories/GHSA-xw6r-chmh-vpmj"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1eaab6527866cb40dccef0fbcdcf7e97a21f954fd27ec0cb4a04da9db5433cbd · sha256:bef845e8dbbb8d79… · /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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