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CVE-2026-13439

The Easy Form Builder by WhiteStudio plugin for WordPress is vulnerable to Unauthenticated Privilege Escalation to Administrator in versions up to, and including, 4.0.11 This is due to the password recovery flow using the publicly-visible session identifier ('sid') as the password reset token stored in wp_emsfb_temp_links, combined with a publicly-accessible nonce refresh endpoint (Emsfb/v1/nonce/refresh) that issues valid WordPress REST nonces to unauthenticated visitors. This makes it possible
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:40a1c5e5fd6523c146ce172a37a29982be29a33abb4d890ccf37f39291cebe07
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"Easy Form Builder by WhiteStudio – Drag & Drop Form Builder","vendor":"hassantafreshi","versions":[{"lessThanOrEqual":"4.0.11","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:122e10f2ab35a04a9e531834cc2db663d6ad8756dc060f432a6d114b803fe759 · sha256:fc16c6643a901f94… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","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:v2:122e10f2ab35a04a9e531834cc2db663d6ad8756dc060f432a6d114b803fe759 · sha256:fc16c6643a901f94… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-269","description":"CWE-269 Improper Privilege Management","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:122e10f2ab35a04a9e531834cc2db663d6ad8756dc060f432a6d114b803fe759 · sha256:fc16c6643a901f94… · /containers/cna/problemTypes/0/descriptions/0

Source references

8 source assertions
{"url":"https://plugins.trac.wordpress.org/browser/easy-form-builder/trunk/includes/class-Emsfb-public.php#L1587"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:122e10f2ab35a04a9e531834cc2db663d6ad8756dc060f432a6d114b803fe759 · sha256:fc16c6643a901f94… · /containers/cna/references/3
{"url":"https://plugins.trac.wordpress.org/browser/easy-form-builder/trunk/includes/class-Emsfb-public.php#L5024"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:122e10f2ab35a04a9e531834cc2db663d6ad8756dc060f432a6d114b803fe759 · sha256:fc16c6643a901f94… · /containers/cna/references/2
{"url":"https://plugins.trac.wordpress.org/browser/easy-form-builder/trunk/includes/class-Emsfb-public.php#L5060"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:122e10f2ab35a04a9e531834cc2db663d6ad8756dc060f432a6d114b803fe759 · sha256:fc16c6643a901f94… · /containers/cna/references/1
{"url":"https://plugins.trac.wordpress.org/browser/easy-form-builder/trunk/includes/class-Emsfb-public.php#L623"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:122e10f2ab35a04a9e531834cc2db663d6ad8756dc060f432a6d114b803fe759 · sha256:fc16c6643a901f94… · /containers/cna/references/5
{"url":"https://plugins.trac.wordpress.org/browser/easy-form-builder/trunk/includes/class-Emsfb-public.php#L96"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:122e10f2ab35a04a9e531834cc2db663d6ad8756dc060f432a6d114b803fe759 · sha256:fc16c6643a901f94… · /containers/cna/references/4
{"url":"https://plugins.trac.wordpress.org/changeset/3588226/easy-form-builder/trunk/includes/class-Emsfb-public.php"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:122e10f2ab35a04a9e531834cc2db663d6ad8756dc060f432a6d114b803fe759 · sha256:fc16c6643a901f94… · /containers/cna/references/6
{"url":"https://plugins.trac.wordpress.org/changeset?old_path=%2Feasy-form-builder/tags/4.0.11&new_path=%2Feasy-form-builder/tags/4.0.12"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:122e10f2ab35a04a9e531834cc2db663d6ad8756dc060f432a6d114b803fe759 · sha256:fc16c6643a901f94… · /containers/cna/references/7
{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/df8326b6-a443-4f76-a755-49f89af74d7e?source=cve"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:122e10f2ab35a04a9e531834cc2db663d6ad8756dc060f432a6d114b803fe759 · sha256:fc16c6643a901f94… · /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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