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Critical 9.3Published Oct 22, 2026

CVE-2026-19677Authentication Bypass Leading to Server-Side Command Execution

Updated under an hour ago ()

Does this affect you?

It affects onPhase Forms. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.53%, higher than 45% of scored CVEs.

An authentication bypass vulnerability in the public onPhase/ frevvo registration form version 11.0.14 allows an unauthenticated remote attacker to authenticate as an arbitrary tenant user, obtain TenantAdmin and Designer privileges, and execute arbitrary operating system commands via manipulation of registration parameters containing a valid tenant name and existing user identifier.

CVSS
9.3 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness (CWE)
CWE-306
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
0.53% (percentile 45)
Assigned by
MON-CSIRT
NVD analysis
Awaiting Analysis
Record last updated
Oct 22, 2026
First seen by InfoSec Signals
Oct 22, 2026

Affected products

Affected products
onPhase onPhase Forms
onphase:forms (from the name)
11.0.14
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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