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CVE-2026-33436

Stirling-PDF is a locally hosted web application that facilitates various operations on PDF files. In versions prior to 2.0.0, file upload endpoints render user-supplied filenames directly into HTML using unsafe methods like innerHTML without sanitization. An attacker can craft a file with a malicious filename containing JavaScript that executes in the uploading user's browser context, resulting in reflected XSS. The issue affects numerous upload endpoints across the application. The issue has b
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a1464d36658712c2d849cc910282336e4f066d70baaa397382a0ce3b2ec493af
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 3 assertions

{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2ead16039fd8bba9a0163d390ddb50bc912d59dc26355a2d61547bdc5a642708 · sha256:5439b63319df5360… · /containers/cna/problemTypes/0/descriptions/0

{"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:v2:2ead16039fd8bba9a0163d390ddb50bc912d59dc26355a2d61547bdc5a642708 · sha256:5439b63319df5360… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-116","description":"CWE-116: Improper Encoding or Escaping of Output","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2ead16039fd8bba9a0163d390ddb50bc912d59dc26355a2d61547bdc5a642708 · sha256:5439b63319df5360… · /containers/cna/problemTypes/2/descriptions/0

Affected products and versions

1 source assertion
{"product":"Stirling-PDF","vendor":"Stirling-Tools","versions":[{"status":"affected","version":"< 2.0.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2ead16039fd8bba9a0163d390ddb50bc912d59dc26355a2d61547bdc5a642708 · sha256:5439b63319df5360… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.1,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2ead16039fd8bba9a0163d390ddb50bc912d59dc26355a2d61547bdc5a642708 · sha256:5439b63319df5360… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

3 source assertions
{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2ead16039fd8bba9a0163d390ddb50bc912d59dc26355a2d61547bdc5a642708 · sha256:5439b63319df5360… · /containers/cna/problemTypes/0/descriptions/0
{"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:v2:2ead16039fd8bba9a0163d390ddb50bc912d59dc26355a2d61547bdc5a642708 · sha256:5439b63319df5360… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-116","description":"CWE-116: Improper Encoding or Escaping of Output","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2ead16039fd8bba9a0163d390ddb50bc912d59dc26355a2d61547bdc5a642708 · sha256:5439b63319df5360… · /containers/cna/problemTypes/2/descriptions/0

Source references

2 source assertions
{"tags":["exploit"],"url":"https://github.com/Stirling-Tools/Stirling-PDF/security/advisories/GHSA-q5j3-4m5w-wp75"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2ead16039fd8bba9a0163d390ddb50bc912d59dc26355a2d61547bdc5a642708 · sha256:5439b63319df5360… · /containers/adp/0/references/0
{"name":"https://github.com/Stirling-Tools/Stirling-PDF/security/advisories/GHSA-q5j3-4m5w-wp75","tags":["x_refsource_CONFIRM"],"url":"https://github.com/Stirling-Tools/Stirling-PDF/security/advisories/GHSA-q5j3-4m5w-wp75"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2ead16039fd8bba9a0163d390ddb50bc912d59dc26355a2d61547bdc5a642708 · sha256:5439b63319df5360… · /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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