{"answers":{"affected":"2 open source packages ship an affected version, including craftcms/cms.","exploited":"There is no known exploitation of CVE-2026-72780 in the wild and no public exploit code.","fix":"Upgrade craftcms/cms to 5.10.5 or later.","what":"CVE-2026-72780 is a high-severity authentication bypass vulnerability in craftcms cms, published on 11 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-72780 and fix it if it is affected.\n\nWhat it is: CVE-2026-72780 is a high-severity authentication bypass vulnerability in craftcms cms, published on 11 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-72780 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- craftcms/cms (Packagist): affected from 5.0.0-RC1; fixed in 5.10.5\n- craftcms/cms (Packagist): affected from 5.0.0-RC1; fixed in 5.10.5\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-2026-72780/ (Markdown: https://insights.sbomify.com/CVE-2026-72780/index.md)","id":"CVE-2026-72780","markdown":"https://insights.sbomify.com/CVE-2026-72780/index.md","name":"CVE-2026-72780","record":{"aliases":["GHSA-jh4m-63fq-p9h9","GHSA-wg23-69c2-gjc8"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Craft CMS","requires_auth":"low_privilege","summary":"Attackers can replay WebAuthn assertions to hijack user accounts in Craft CMS due to missing counter updates.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-294","name":"Authentication Bypass by Capture-replay"}],"description":"Craft CMS before 5.10.5 fails to persist updated credential counters after WebAuthn assertion validation in the passkey login endpoint. Attackers can replay captured login request bodies containing requestOptions and response to create additional authenticated sessions for victim accounts.","ecosystems":["Packagist"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Craft CMS before 5.10.5 WebAuthn Assertion Replay via login-with-passkey","id":"CVE-2026-72780","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":2,"n_references":2,"next":{"headline":"Craft CMS 5.0.0-RC1 before 5.10.7 Remote Code Execution via Twig Sandbox Escape","id":"CVE-2026-72781"},"packages":[{"ecosystem":"Packagist","fixed":["5.10.5"],"introduced":["5.0.0-RC1"],"last_affected":[],"package":"craftcms/cms","purl":null,"source":"GHSA-wg23-69c2-gjc8"},{"ecosystem":"Packagist","fixed":["5.10.5"],"introduced":["5.0.0-RC1"],"last_affected":[],"package":"craftcms/cms","purl":"pkg:composer/craftcms/cms","source":"GHSA-wg23-69c2-gjc8"}],"prev":{"headline":"Craft CMS 5.0.0-RC1 before 5.10.6 Arbitrary File Read via SplFileObject","id":"CVE-2026-72779"},"products":["cms"],"published":"2026-08-11","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-08","vendors":["craftcms"]},"summary":"Attackers can replay WebAuthn assertions to hijack user accounts in Craft CMS due to missing counter updates.","url":"https://insights.sbomify.com/CVE-2026-72780/"}