CVE-2026-108905 pH7Builder - Authentication Bypass

pH7Builder before 18.6.0 contains a hardcoded API key vulnerability in Tool.class.php that allows unauthenticated attackers to bypass API access checks by spoofing the Host header, letting attackers retrieve sensitive member information, exploit requires sending Host header with specific key.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.31% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
11 October 2026
Updated
15 October 2026
Weakness
CWE-798

Vendor fix

Update to version 18.6.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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