{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-23657 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-23657 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-23657 is a medium-severity cross-site scripting vulnerability in Richard Leishman t/a Webforward Mail Subscribe List, published on 16 May 2023. 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-2023-23657 and fix it if it is affected.\n\nWhat it is: CVE-2023-23657 is a medium-severity cross-site scripting vulnerability in Richard Leishman t/a Webforward Mail Subscribe List, published on 16 May 2023. 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-2023-23657 in the wild and no public exploit code.\n\nAffected product: Richard Leishman t/a Webforward Mail Subscribe List. 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-2023-23657/ (Markdown: https://insights.sbomify.com/CVE-2023-23657/index.md)","id":"CVE-2023-23657","markdown":"https://insights.sbomify.com/CVE-2023-23657/index.md","name":"CVE-2023-23657","record":{"aliases":["GHSA-x33w-9667-c259"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"low_privilege","summary":"Authenticated contributors can inject malicious scripts via the Mail Subscribe List plugin, potentially leading to session hijacking or site defacement.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Patchstack","cpe":[{"product":"mail_subscribe_list","vendor":"webfwd"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Auth. (contributor+) Stored Cross-Site Scripting (XSS) vulnerability in Richard Leishman t/a Webforward Mail Subscribe List plugin \u003c= 2.1.9 versions.","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":"WordPress Mail Subscribe List Plugin \u003c= 2.1.9 is vulnerable to Cross Site Scripting (XSS)","id":"CVE-2023-23657","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"WordPress MainWP Matomo Extension Plugin \u003c= 4.0.4 is vulnerable to Cross Site Request Forgery (CSRF)","id":"CVE-2023-23659"},"packages":[],"prev":{"headline":"WordPress MainWP File Uploader Extension Plugin \u003c= 4.1 - Unauthenticated Arbitrary File Upload Vulnerability","id":"CVE-2023-23656"},"products":["Mail Subscribe List"],"published":"2023-05-16","related":[{"cvss_score":4.3,"headline":"Mail Subscribe List \u003c 2.1.4 - Arbitrary Subscribed User Deletion via CSRF","id":"CVE-2022-1603","kev_date_added":null,"published":"2022-06-20"},{"cvss_score":3.5,"headline":"Mail Subscribe List Plugin index.php cross site scripting","id":"CVE-2013-10026","kev_date_added":null,"published":"2023-05-02"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-28","vendors":["Richard Leishman t/a Webforward"]},"summary":"Authenticated contributors can inject malicious scripts via the Mail Subscribe List plugin, potentially leading to session hijacking or site defacement.","url":"https://insights.sbomify.com/CVE-2023-23657/"}