{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100876 exists.","fix":"No fix has been published for CVE-2026-100876 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-100876 is a medium-severity missing authorization vulnerability in mathurvishal CloudClassroom-PHP-Project, published on 27 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-100876 and fix it if it is affected.\n\nWhat it is: CVE-2026-100876 is a medium-severity missing authorization vulnerability in mathurvishal CloudClassroom-PHP-Project, published on 27 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100876 exists.\n\nAffected product: mathurvishal CloudClassroom-PHP-Project. 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-2026-100876/ (Markdown: https://insights.sbomify.com/CVE-2026-100876/index.md)","id":"CVE-2026-100876","markdown":"https://insights.sbomify.com/CVE-2026-100876/index.md","name":"CVE-2026-100876","record":{"aliases":["GHSA-3xr8-56j6-mxh4"],"analysis":{"component_type":"web_application","fix_type":"no_fix_stated","impacts":["account_takeover","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"CloudClassroom PHP Project","requires_auth":"low_privilege","summary":"Attackers can bypass authentication in the student login link to access accounts and data without credentials.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"},{"id":"CWE-287","name":"Improper Authentication"}],"description":"A vulnerability was found in mathurvishal CloudClassroom-PHP-Project up to 5dadec098bfbbf3300d60c3494db3fb95b66e7be. Affected is an unknown function of the file loginlinkstudent.php. Performing a manipulation of the argument umail results in missing authentication. Remote exploitation of the attack is possible. The exploit has been made public and could be used. This product follows a rolling release approach for continuous delivery, so version details for affected or updated releases are not provided. The vendor was contacted early about this disclosure but did not respond in any way.","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":"mathurvishal CloudClassroom-PHP-Project loginlinkstudent.php missing authentication","id":"CVE-2026-100876","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"mathurvishal CloudClassroom-PHP-Project registrationform.php cross site scripting","id":"CVE-2026-100877"},"packages":[],"prev":{"headline":"mathurvishal CloudClassroom-PHP-Project updatedetailsfromfaculty.php sql injection","id":"CVE-2026-100875"},"products":["CloudClassroom-PHP-Project"],"published":"2026-09-27","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)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-30","vendors":["mathurvishal"]},"summary":"Attackers can bypass authentication in the student login link to access accounts and data without credentials.","url":"https://insights.sbomify.com/CVE-2026-100876/"}