{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-4387 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-4387 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-4387 is a medium-severity vulnerability in wpopal Opal Estate, published on 1 Jul 2023. 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-2021-4387 and fix it if it is affected.\n\nWhat it is: CVE-2021-4387 is a medium-severity vulnerability in wpopal Opal Estate, published on 1 Jul 2023. 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-2021-4387 in the wild and no public exploit code.\n\nAffected product: wpopal Opal Estate. 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-2021-4387/ (Markdown: https://insights.sbomify.com/CVE-2021-4387/index.md)","id":"CVE-2021-4387","markdown":"https://insights.sbomify.com/CVE-2021-4387/index.md","name":"CVE-2021-4387","record":{"aliases":["GHSA-x597-6f24-323f"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"none","summary":"Unauthenticated attackers can trick administrators into modifying featured property settings via forged requests in the Opal Estate WordPress plugin.","user_interaction":"required","vuln_class":"csrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Wordfence","cpe":[{"product":"opal_estate","vendor":"wpopal"}],"cvss":{"score":4.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-352","name":"Cross-Site Request Forgery"}],"description":"The Opal Estate plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.6.11. This is due to missing or incorrect nonce validation on the opalestate_set_feature_property() and opalestate_remove_feature_property() functions. This makes it possible for unauthenticated attackers to set and remove featured properties via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.","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":"Opal Estate \u003c= 1.6.11 - Cross-Site Request Forgery Bypass","id":"CVE-2021-4387","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"csrf","year":"2021"},"n_packages":0,"n_references":9,"next":{"headline":"Opal Estate \u003c= 1.6.11 - Missing Authorization","id":"CVE-2021-4388"},"packages":[],"prev":{"headline":"WP Security Question \u003c= 1.0.5 - Cross-Site Request Forgery Bypass","id":"CVE-2021-4386"},"products":["Opal Estate"],"published":"2023-07-01","related":[{"cvss_score":4.3,"headline":"Opal Estate \u003c= 1.6.11 - Missing Authorization","id":"CVE-2021-4388","kev_date_added":null,"published":"2023-07-01"}],"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":"2026-04-08","vendors":["wpopal"]},"summary":"Unauthenticated attackers can trick administrators into modifying featured property settings via forged requests in the Opal Estate WordPress plugin.","url":"https://insights.sbomify.com/CVE-2021-4387/"}