Skip to content
OpenAdvisories
Critical · 9.8 Scanner template Public exploit CVE-2026-48611 EUVD-2026-36375GHSA-24pr-8ggp-h88c

Improper authentication checks in the OAuth implementation allow account hijacking even when OAuth is not configured or enabled leading to …

Published Jun 12, 2026 · Updated Jun 12, 2026 · Assigned by hackerone

Vendor: phpBB Product: phpBB

Description

Improper authentication checks in the OAuth implementation allow account hijacking even when OAuth is not configured or enabled leading to unauthorized access in default installations.

Affected products

VendorProductAffectedFixed
phpBB phpBB 3.3.0 – ≤ 3.3.16 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 2 repositories

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Automated scanner template

A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.

Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.

References