{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48611 exists.","fix":"No fix has been published for CVE-2026-48611 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-48611 is a critical authentication bypass vulnerability in phpBB, published on 12 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-48611 and fix it if it is affected.\n\nWhat it is: CVE-2026-48611 is a critical authentication bypass vulnerability in phpBB, published on 12 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48611 exists.\n\nAffected product: phpBB. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-48611/ (Markdown: https://insights.sbomify.com/CVE-2026-48611/index.md)","id":"CVE-2026-48611","markdown":"https://insights.sbomify.com/CVE-2026-48611/index.md","name":"CVE-2026-48611","record":{"aliases":["GHSA-24pr-8ggp-h88c"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"phpBB forum software","requires_auth":"none","summary":"Attackers can hijack accounts in default phpBB installations due to improper OAuth authentication checks, leading to unauthorized access.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-07-07","github_poc":2,"max_poc_stars":0,"metasploit":0,"nuclei":1,"refs":[{"date":"2026-07-07T14:45:09Z","kind":"github_poc","ref":"https://github.com/lxdwnpiper/CVE-2026-48611-phpBB","stars":0,"title":"Bypass Authentication"},{"date":"2026-08-30T15:35:30Z","kind":"github_poc","ref":"https://github.com/Ethicalgrey/phpBB-CVE-2026-48611","stars":0,"title":"Automated PoC for CVE-2026-48611 — phpBB OAuth login_link authentication bypass"},{"date":null,"kind":"nuclei","ref":"http/cves/2026/CVE-2026-48611.yaml","stars":null,"title":"phpBB \u003c 3.3.17 - Authentication Bypass"}],"tier":"weaponised"},"has_fix":null,"headline":"Auth bypass in phpBB","id":"CVE-2026-48611","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Cross-site request forgery in phpBB","id":"CVE-2026-48612"},"packages":[],"prev":{"headline":"Missing authorization in EFG","id":"CVE-2026-48610"},"products":["phpBB"],"published":"2026-06-12","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-06-12","vendors":["phpBB"]},"summary":"Attackers can hijack accounts in default phpBB installations due to improper OAuth authentication checks, leading to unauthorized access.","url":"https://insights.sbomify.com/CVE-2026-48611/"}