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TI-2026-10551 Aliases CVE-2026-12270GHSA-v4gv-5wcc-cjvx

Everest Forms < 3.5.0 - Unauthenticated Missing Authorization via Site Assistant REST Endpoints

Priority HIGH 68Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

The Everest Forms WordPress plugin before 3.5.0 does not correctly restrict access to several REST API endpoints belonging to its onboarding assistant: the capability check is only applied when an attacker-controllable request header holds a specific value, so it can be bypassed by omitting or changing that header. This makes it possible for unauthenticated attackers to read onboarding status information, modify the related Everest Forms WordPress plugin before 3.5.0 options, and trigger an email from the site to an arbitrary address.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00298 22nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Everest Forms (Unknown): 3.5.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownEverest Forms3.4.2 to before 3.5.03.5.0Patch availableCNA
  • Everest Forms VendorUnknown Affected 3.4.2 to before 3.5.0 Fixed in 3.5.0 Patch available CNA

Remediation

  • Fix · CNA Everest Forms (Unknown) Fixed in 3.5.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Everest Forms 3.5.0

    2 records Highest priority Priority HIGH 2 HIGH

    Other records, highest priority first

    • TI-2026-09993 Everest Forms < 3.5.0 - Unauthenticated Sensitive Information Exposure via Residual CSV ArtifactsPriority HIGH 72
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-12270
  2. 2026-10-03 Alias added: GHSA-v4gv-5wcc-cjvx

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences