{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-61511 exists.","fix":"No fix has been published for CVE-2026-61511 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-61511 is a critical code injection vulnerability in vBulletin, published on 27 Jul 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-2026-61511 and fix it if it is affected.\n\nWhat it is: CVE-2026-61511 is a critical code injection vulnerability in vBulletin, published on 27 Jul 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-2026-61511 exists.\n\nAffected product: vBulletin. 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-2026-61511/ (Markdown: https://insights.sbomify.com/CVE-2026-61511/index.md)","id":"CVE-2026-61511","markdown":"https://insights.sbomify.com/CVE-2026-61511/index.md","name":"CVE-2026-61511","record":{"aliases":["GHSA-43hg-f3wj-j2m6"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"vBulletin forum software","requires_auth":"none","summary":"Unauthenticated attackers can execute arbitrary PHP code in vBulletin via crafted input in the template runtime, risking full server compromise.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"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","version":"4.0"},"cwes":[{"id":"CWE-95","name":"Improper Neutralization of Directives in Dynamically Evaluated Code"}],"description":"vBulletin 5.x through 5.7.5 and 6.x through 6.2.1 contains an eval injection vulnerability in the vB5_Template_Runtime::runMaths() method within the template runtime that allows unauthenticated remote attackers to execute arbitrary PHP code by supplying crafted input through the pagenav[pagenumber] parameter. Attackers can exploit the insufficiently restrictive regex filter by using phpfuck-style encoding with permitted characters to inject and execute arbitrary PHP code via the unauthenticated ajax/render template route without any authentication.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-07-28","github_poc":5,"max_poc_stars":6,"metasploit":0,"nuclei":1,"refs":[{"date":"2026-07-29T08:18:31Z","kind":"github_poc","ref":"https://github.com/tc4dy/CVE-2026-61511-PoC-Exploit","stars":6,"title":"CVE-2026-61511 – vBulletin Pre-Auth RCE (CVSS 9.8). Vuln 5.x/6.x (unpatched). Multi-exploit via Endpoint Pool, AJAX, PHPFuck WAF bypass. Full toolkit: reverse shell, proxy, persistence, webshell, database operations, firewall control, log management, mass scanning. 2 versions: multi-exploit \u0026 safe-check. Python 3.8+ Use Ethically, Stay Legal. "},{"date":"2026-07-28T12:34:36Z","kind":"github_poc","ref":"https://github.com/puj790201-lab/cve-2026-61511","stars":3,"title":"cve-2026-61511"},{"date":"2026-07-28T01:47:47Z","kind":"github_poc","ref":"https://github.com/HORKimhab/CVE-2026-61511","stars":0,"title":"CVE-2026-61511 - Draft or Todo"},{"date":"2026-07-29T00:35:35Z","kind":"github_poc","ref":"https://github.com/codeb0ssx/Ultimate-CVE-2026-61511","stars":0,"title":"vBulletin 5.x through 5.7.5 and 6.x through 6.2.1 contains an eval injection vulnerability in the vB5_Template_Runtime::runMaths() method within the template runtime that allows unauthenticated remote attackers to execute arbitrary PHP code"},{"date":"2026-07-30T04:51:53Z","kind":"github_poc","ref":"https://github.com/shootcannon/CVE-2026-61511","stars":0,"title":null},{"date":null,"kind":"nuclei","ref":"http/cves/2026/CVE-2026-61511.yaml","stars":null,"title":"vBulletin 6.x - Remote Code Execution"}],"tier":"weaponised"},"has_fix":null,"headline":"vBulletin \u003c 6.2.2 Eval Injection RCE via vb5/template/runtime.php","id":"CVE-2026-61511","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"Puwell IP Camera 2.x - 4.x Unauthenticated Access via TCP Port 23456","id":"CVE-2026-61514"},"packages":[],"prev":{"headline":"Rejetto HFS \u003c 3.2.1 Limited File Disclosure via Path Traversal in lang Parameter","id":"CVE-2026-61505"},"products":["vBulletin"],"published":"2026-07-27","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":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-14","vendors":["vBulletin"]},"summary":"Unauthenticated attackers can execute arbitrary PHP code in vBulletin via crafted input in the template runtime, risking full server compromise.","url":"https://insights.sbomify.com/CVE-2026-61511/"}