---
title: "CVE-2026-108905: pH7Builder - Authentication Bypass"
description: "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."
url: https://panop.io/threat-heartbeat/CVE-2026-108905/
---

# 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 ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-108905)

## 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](https://cwe.mitre.org/data/definitions/798.html)

## 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

- [https://nvd.nist.gov/vuln/detail/CVE-2026-108905](https://nvd.nist.gov/vuln/detail/CVE-2026-108905)
- [https://github.com/pH7Software/pH7-Social-Dating-CMS](https://github.com/pH7Software/pH7-Social-Dating-CMS)
- [https://github.com/pH7Software/pH7-Social-Dating-CMS/blob/v18.5.1/\_protected/framework/Api/Tool.class.php#L25-L48](https://github.com/pH7Software/pH7-Social-Dating-CMS/blob/v18.5.1/_protected/framework/Api/Tool.class.php#L25-L48)
- [https://github.com/pH7Software/pH7-Social-Dating-CMS/commit/cfe1e0c418946b868db8c399d0cf6b122552efd2](https://github.com/pH7Software/pH7-Social-Dating-CMS/commit/cfe1e0c418946b868db8c399d0cf6b122552efd2)
- [https://www.vulncheck.com/advisories/ph7builder-before-18.6.0-hard-coded-api-key-bypass-via-host-header](https://www.vulncheck.com/advisories/ph7builder-before-18.6.0-hard-coded-api-key-bypass-via-host-header)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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