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CVE-2026-42840

An authenticated user can persist arbitrary HTML/JavaScript in the email_id or mobile_no fields of a Customer record and trigger unescaped rendering in the Point of Sale (POS) interface for every operator who selects that customer. This issue affects ERPNext: 16.16.0.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f401e011e9dea984cd31eee5a01749c31715a26dde443855477254937c89345d
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","platforms":["Windows","MacOS","Linux"],"product":"ERPNext","vendor":"Frappe","versions":[{"status":"affected","version":"16.16.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:dedf9f2c3cdbc1877a09596a1c0d23f3a940ab55b24e5a681496f6082c4ef85e · sha256:98d1491b54e05064… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LO…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:dedf9f2c3cdbc1877a09596a1c0d23f3a940ab55b24e5a681496f6082c4ef85e · sha256:98d1491b54e05064… · /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 (XSS or 'Cross-site Scripting')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:dedf9f2c3cdbc1877a09596a1c0d23f3a940ab55b24e5a681496f6082c4ef85e · sha256:98d1491b54e05064… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"tags":["third-party-advisory"],"url":"https://fluidattacks.com/es/advisories/weeknd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dedf9f2c3cdbc1877a09596a1c0d23f3a940ab55b24e5a681496f6082c4ef85e · sha256:98d1491b54e05064… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://fluidattacks.com/es/advisories/weeknd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dedf9f2c3cdbc1877a09596a1c0d23f3a940ab55b24e5a681496f6082c4ef85e · sha256:98d1491b54e05064… · /containers/adp/0/references/0
{"tags":["product"],"url":"https://github.com/frappe/erpnext"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dedf9f2c3cdbc1877a09596a1c0d23f3a940ab55b24e5a681496f6082c4ef85e · sha256:98d1491b54e05064… · /containers/cna/references/1

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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