{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-39340 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-39340 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-39340 is a medium-severity cross-site scripting vulnerability in Notification – Custom Notifications and Alerts for WordPress, published on 1 Nov 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-39340 and fix it if it is affected.\n\nWhat it is: CVE-2021-39340 is a medium-severity cross-site scripting vulnerability in Notification – Custom Notifications and Alerts for WordPress, published on 1 Nov 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-39340 in the wild and no public exploit code.\n\nAffected product: Notification – Custom Notifications and Alerts for WordPress. 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-2021-39340/ (Markdown: https://insights.sbomify.com/CVE-2021-39340/index.md)","id":"CVE-2021-39340","markdown":"https://insights.sbomify.com/CVE-2021-39340/index.md","name":"CVE-2021-39340","record":{"aliases":["GHSA-f83v-8qph-hgj6"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"WordPress plugin","requires_auth":"high_privilege","summary":"Administrators can inject arbitrary scripts in WordPress Notification plugin when unfiltered_html is disabled, leading to stored XSS.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Wordfence","cpe":[{"product":"notification","vendor":"bracketspace"}],"cvss":{"score":4.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:H/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 Notification WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via several parameters found in the ~/src/classes/Utils/Settings.php file which made it possible for attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 7.2.4. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.","ecosystems":[],"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":"Notification – Custom Notifications and Alerts for WordPress \u003c= 7.2.4 Authenticated Stored Cross-Site Scripting","id":"CVE-2021-39340","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"OptinMonster \u003c= 2.6.4 Unprotected REST-API Endpoints","id":"CVE-2021-39341"},"packages":[],"prev":{"headline":"Telefication \u003c= 1.8.0 Open Proxy and Server-Side Request Forgery","id":"CVE-2021-39339"},"products":["Notification – Custom Notifications and Alerts for WordPress"],"published":"2021-11-01","related":[],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-03-31","vendors":["Notification – Custom Notifications and Alerts for WordPress"]},"summary":"Administrators can inject arbitrary scripts in WordPress Notification plugin when unfiltered_html is disabled, leading to stored XSS.","url":"https://insights.sbomify.com/CVE-2021-39340/"}