{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-6527 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-6527 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-6527 is a medium-severity cross-site scripting vulnerability in nik00726 Email Subscription Popup, published on 6 Dec 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-2023-6527 and fix it if it is affected.\n\nWhat it is: CVE-2023-6527 is a medium-severity cross-site scripting vulnerability in nik00726 Email Subscription Popup, published on 6 Dec 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-2023-6527 in the wild and no public exploit code.\n\nAffected product: nik00726 Email Subscription Popup. 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-2023-6527/ (Markdown: https://insights.sbomify.com/CVE-2023-6527/index.md)","id":"CVE-2023-6527","markdown":"https://insights.sbomify.com/CVE-2023-6527/index.md","name":"CVE-2023-6527","record":{"aliases":["GHSA-fv9g-wpxr-g2cq"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"none","summary":"Unauthenticated attackers can inject arbitrary web scripts via the HTTP_REFERER header in the Email Subscription Popup WordPress plugin.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Wordfence","cpe":[{"product":"email_subscription_popup","vendor":"i13websolution"}],"cvss":{"score":6.1,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/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 Email Subscription Popup plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the HTTP_REFERER header in all versions up to, and including, 1.2.18 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user 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":"Email Subscription Popup \u003c= 1.2.18 - Reflected Cross-Site Scripting","id":"CVE-2023-6527","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2023"},"n_packages":0,"n_references":2,"next":{"headline":"Slider Revolution \u003c 6.6.19 - Author+ Insecure Deserialization leading to RCE","id":"CVE-2023-6528"},"packages":[],"prev":{"headline":"Meta Box – WordPress Custom Fields Framework \u003c= 5.9.2 - Authenticated (Contributor+) Stored Cross-Site Scripting","id":"CVE-2023-6526"},"products":["Email Subscription Popup"],"published":"2023-12-06","related":[{"cvss_score":7.1,"headline":"WordPress Email Subscription Popup plugin \u003c= 1.2.20 - Cross Site Scripting (XSS) vulnerability","id":"CVE-2024-27960","kev_date_added":null,"published":"2024-03-17"},{"cvss_score":7.1,"headline":"WordPress Email Subscription Popup Plugin \u003c= 1.2.16 is vulnerable to Cross Site Scripting (XSS)","id":"CVE-2023-30489","kev_date_added":null,"published":"2023-08-14"},{"cvss_score":6.4,"headline":"Cross-site scripting in Email Subscription Popup","id":"CVE-2024-11195","kev_date_added":null,"published":"2024-11-19"},{"cvss_score":6.1,"headline":"Email Subscription Popup \u003c 1.2.20 - Reflected XSS","id":"CVE-2023-6555","kev_date_added":null,"published":"2024-01-08"}],"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":"2026-04-08","vendors":["nik00726"]},"summary":"Unauthenticated attackers can inject arbitrary web scripts via the HTTP_REFERER header in the Email Subscription Popup WordPress plugin.","url":"https://insights.sbomify.com/CVE-2023-6527/"}