{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100877 exists.","fix":"No fix has been published for CVE-2026-100877 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-100877 is a medium-severity cross-site scripting vulnerability in mathurvishal CloudClassroom-PHP-Project, published on 27 Sep 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-2026-100877 and fix it if it is affected.\n\nWhat it is: CVE-2026-100877 is a medium-severity cross-site scripting vulnerability in mathurvishal CloudClassroom-PHP-Project, published on 27 Sep 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-2026-100877 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-2026-100877/ (Markdown: https://insights.sbomify.com/CVE-2026-100877/index.md)","id":"CVE-2026-100877","markdown":"https://insights.sbomify.com/CVE-2026-100877/index.md","name":"CVE-2026-100877","record":{"aliases":["GHSA-gfpp-g6x8-2jgj"],"analysis":{"component_type":"web_application","fix_type":"no_fix_stated","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"CloudClassroom PHP Project","requires_auth":"none","summary":"Remote attackers can inject malicious scripts via registration form fields, potentially compromising user sessions and data.","user_interaction":"required","vuln_class":"xss"},"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:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-94","name":"Improper Control of Generation of Code"},{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"A vulnerability was determined in mathurvishal CloudClassroom-PHP-Project up to 5dadec098bfbbf3300d60c3494db3fb95b66e7be. Affected by this vulnerability is an unknown functionality of the file registrationform.php. Executing a manipulation of the argument FName/LName/Addrs can lead to cross site scripting. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. This product implements a rolling release for ongoing delivery, which means version information for affected or updated releases is unavailable. 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 registrationform.php cross site scripting","id":"CVE-2026-100877","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"zhistaredu StarTraining authRole Endpoint SysUser.java SysUser.isAdmin authorization","id":"CVE-2026-100878"},"packages":[],"prev":{"headline":"mathurvishal CloudClassroom-PHP-Project loginlinkstudent.php missing authentication","id":"CVE-2026-100876"},"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":"2026-09-28","vendors":["mathurvishal"]},"summary":"Remote attackers can inject malicious scripts via registration form fields, potentially compromising user sessions and data.","url":"https://insights.sbomify.com/CVE-2026-100877/"}