{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-70556 exists.","fix":"No fix has been published for CVE-2026-70556 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-70556 is a medium-severity vulnerability in Hubzilla, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-70556 and fix it if it is affected.\n\nWhat it is: CVE-2026-70556 is a medium-severity vulnerability in Hubzilla, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-70556 exists.\n\nAffected product: Hubzilla. 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-2026-70556/ (Markdown: https://insights.sbomify.com/CVE-2026-70556/index.md)","id":"CVE-2026-70556","markdown":"https://insights.sbomify.com/CVE-2026-70556/index.md","name":"CVE-2026-70556","record":{"aliases":["GHSA-q8qh-69f5-v25q"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["account_takeover","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Hubzilla social platform","requires_auth":"none","summary":"Attackers can exploit CSRF in Hubzilla to register malicious OAuth2 apps, potentially intercepting authorization codes and compromising user accounts.","user_interaction":"required","vuln_class":"csrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":5.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-352","name":"Cross-Site Request Forgery"}],"description":"Hubzilla  versions prior to 11.4 contains a cross-site request forgery vulnerability in the OAuth2 /authorize endpoint handled by Zotlabs\\Module\\Authorize::post() that allows unauthenticated attackers to register arbitrary OAuth2 applications under an authenticated user's account by submitting a cross-origin POST request without CSRF token or Origin/Referer validation. Attackers can craft a malicious HTML form that autosubmits attacker-chosen OAuth2 parameters including client_id, client_secret, redirect_uri, and scope to silently register a persistent OAuth2 application, enabling interception of future OAuth2 authorization codes when the victim later authenticates against the attacker-controlled client.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Hubzilla version prior to 11.4 CSRF via OAuth2 /authorize Endpoint App Registration","id":"CVE-2026-70556","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"csrf","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"diboot-core Authenticated Arbitrary Field Read via loadRelatedData Discloses Password Hashes and Salts","id":"CVE-2026-70557"},"packages":[],"prev":{"headline":"MaxSite CMS Unauthenticated PHP Object Injection via maxsite_comuser Cookie","id":"CVE-2026-70554"},"products":["Hubzilla"],"published":"2026-08-06","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)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-24","vendors":["Hubzilla"]},"summary":"Attackers can exploit CSRF in Hubzilla to register malicious OAuth2 apps, potentially intercepting authorization codes and compromising user accounts.","url":"https://insights.sbomify.com/CVE-2026-70556/"}