{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-43409 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-43409 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-43409 is a critical cross-site scripting vulnerability in wpo365.com WordPress + Microsoft Office 365 / Azure AD | LOGIN, published on 19 Nov 2021. 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-2021-43409 and fix it if it is affected.\n\nWhat it is: CVE-2021-43409 is a critical cross-site scripting vulnerability in wpo365.com WordPress + Microsoft Office 365 / Azure AD | LOGIN, published on 19 Nov 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-43409 in the wild and no public exploit code.\n\nAffected product: wpo365.com WordPress + Microsoft Office 365 / Azure AD | LOGIN. 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-2021-43409/ (Markdown: https://insights.sbomify.com/CVE-2021-43409/index.md)","id":"CVE-2021-43409","markdown":"https://insights.sbomify.com/CVE-2021-43409/index.md","name":"CVE-2021-43409","record":{"aliases":["GHSA-px36-5x6h-5x8g"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["account_takeover","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"none","summary":"An anonymous user can inject persistent XSS payloads that execute when an administrator views the dashboard, potentially leading to full system compromise.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"AppCheck","cpe":[{"product":"wordpress_\\+_azure_ad_\\/_microsoft_office_365","vendor":"wpo365"}],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"The “WPO365 | LOGIN” WordPress plugin (up to and including version 15.3) by wpo365.com is vulnerable to a persistent Cross-Site Scripting (XSS) vulnerability (also known as Stored or Second-Order XSS). Persistent XSS vulnerabilities occur when the application stores and retrieves client supplied data without proper handling of dangerous content. This type of XSS vulnerability is exploited by submitting malicious script content to the application which is then retrieved and executed by other application users. The attacker could exploit this to conduct a range of attacks against users of the affected application such as session hijacking, account take over and accessing sensitive data. In this case, the XSS payload can be submitted by any anonymous user, the payload then renders and executes when a WordPress administrator authenticates and accesses the WordPress Dashboard. The injected payload can carry out actions on behalf of the administrator including adding other administrative users and changing application settings. This flaw could be exploited to ultimately provide full control of the affected system to the attacker.","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":"WPO365 | LOGIN - Wordpress Plugin Persistent Cross-Site Scripting","id":"CVE-2021-43409","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"airavata-django-portal allows CRLF log injection because of the lack of escaping in the log statements","id":"CVE-2021-43410"},"packages":[],"prev":{"headline":"Duplicate Post WordPress Plugin SQL Injection Vulnerability","id":"CVE-2021-43408"},"products":["WordPress + Microsoft Office 365 / Azure AD | LOGIN"],"published":"2021-11-19","related":[{"cvss_score":7.5,"headline":"Auth bypass in n/a","id":"CVE-2020-26511","kev_date_added":null,"published":"2020-10-02"}],"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":"2024-09-17","vendors":["wpo365.com"]},"summary":"An anonymous user can inject persistent XSS payloads that execute when an administrator views the dashboard, potentially leading to full system compromise.","url":"https://insights.sbomify.com/CVE-2021-43409/"}