{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-24927 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-24927 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-24927 is a medium-severity cross-site scripting vulnerability in Unknown My Calendar, published on 29 Nov 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-24927 and fix it if it is affected.\n\nWhat it is: CVE-2021-24927 is a medium-severity cross-site scripting vulnerability in Unknown My Calendar, published on 29 Nov 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-24927 in the wild and no public exploit code.\n\nAffected product: Unknown My Calendar. 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-2021-24927/ (Markdown: https://insights.sbomify.com/CVE-2021-24927/index.md)","id":"CVE-2021-24927","markdown":"https://insights.sbomify.com/CVE-2021-24927/index.md","name":"CVE-2021-24927","record":{"aliases":["GHSA-gcvg-gpgp-f6cf"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"low_privilege","summary":"An authenticated attacker can execute arbitrary JavaScript in the victim's browser via a reflected XSS vulnerability in the My Calendar plugin.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"WPScan","cpe":[{"product":"my_calendar","vendor":"my_calendar_project"}],"cvss":{"score":5.4,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"The My Calendar WordPress plugin before 3.2.18 does not sanitise and escape the callback parameter of the mc_post_lookup AJAX action (available to any authenticated user) before outputting it back in the response, leading to a Reflected Cross-Site Scripting issue","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"My Calendar \u003c 3.2.18 - Subscriber+ Reflected Cross-Site Scripting","id":"CVE-2021-24927","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Rearrange Woocommerce Products \u003c 3.0.8 - Subscriber+ SQL Injection","id":"CVE-2021-24928"},"packages":[],"prev":{"headline":"Domain Check \u003c 1.0.17 - Reflected Cross-Site Scripting","id":"CVE-2021-24926"},"products":["My Calendar"],"published":"2021-11-29","related":[{"cvss_score":6.1,"headline":"Cross-site scripting in n/a","id":"CVE-2019-15713","kev_date_added":null,"published":"2019-08-28"},{"cvss_score":5.4,"headline":"WordPress My Calendar Plugin \u003c= 3.4.3 is vulnerable to Cross Site Request Forgery (CSRF)","id":"CVE-2023-23813","kev_date_added":null,"published":"2023-05-22"},{"cvss_score":5.4,"headline":"WordPress My Calendar Plugin \u003c= 3.3.24.1 is vulnerable to Cross Site Request Forgery (CSRF)","id":"CVE-2022-47427","kev_date_added":null,"published":"2023-03-15"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["Unknown"]},"summary":"An authenticated attacker can execute arbitrary JavaScript in the victim's browser via a reflected XSS vulnerability in the My Calendar plugin.","url":"https://insights.sbomify.com/CVE-2021-24927/"}