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CVE-2026-31271

megagao production_ssm v1.0 contains an authorization bypass vulnerability in the user addition functionality. The insert() method in UserController.java lacks authentication checks, allowing unauthenticated attackers to create super administrator accounts by directly accessing the /user/insert endpoint. This leads to complete system compromise.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c6d301599aeea8ee1b33a8fc5658c1665f321db8b972ba019ff11e93a83c05f4
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-288","description":"CWE-288 Authentication Bypass Using an Alternate Path or Channel","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b1e4fb1afbd6dd63fc27d31ec570ca091f48a3c2cded2bfa652937ebc1f32b79 · sha256:32406dce90bd3513… · /containers/adp/0/problemTypes/0/descriptions/0

{"description":"n/a","lang":"en","type":"text"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b1e4fb1afbd6dd63fc27d31ec570ca091f48a3c2cded2bfa652937ebc1f32b79 · sha256:32406dce90bd3513… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b1e4fb1afbd6dd63fc27d31ec570ca091f48a3c2cded2bfa652937ebc1f32b79 · sha256:32406dce90bd3513… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b1e4fb1afbd6dd63fc27d31ec570ca091f48a3c2cded2bfa652937ebc1f32b79 · sha256:32406dce90bd3513… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-288","description":"CWE-288 Authentication Bypass Using an Alternate Path or Channel","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b1e4fb1afbd6dd63fc27d31ec570ca091f48a3c2cded2bfa652937ebc1f32b79 · sha256:32406dce90bd3513… · /containers/adp/0/problemTypes/0/descriptions/0
{"description":"n/a","lang":"en","type":"text"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b1e4fb1afbd6dd63fc27d31ec570ca091f48a3c2cded2bfa652937ebc1f32b79 · sha256:32406dce90bd3513… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://github.com/clockw1se0v0/Vul/blob/main/production_ssm/Unauthorized.md"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b1e4fb1afbd6dd63fc27d31ec570ca091f48a3c2cded2bfa652937ebc1f32b79 · sha256:32406dce90bd3513… · /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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