{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-6621 exists.","fix":"No fix has been published for CVE-2023-6621 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-6621 is a medium-severity cross-site scripting vulnerability in Unknown POST SMTP, published on 3 Jan 2024. 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-2023-6621 and fix it if it is affected.\n\nWhat it is: CVE-2023-6621 is a medium-severity cross-site scripting vulnerability in Unknown POST SMTP, published on 3 Jan 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-6621 exists.\n\nAffected product: Unknown POST SMTP. 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-2023-6621/ (Markdown: https://insights.sbomify.com/CVE-2023-6621/index.md)","id":"CVE-2023-6621","markdown":"https://insights.sbomify.com/CVE-2023-6621/index.md","name":"CVE-2023-6621","record":{"aliases":["GHSA-gr9g-7x3w-8vjj"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"none","summary":"Reflected XSS in POST SMTP plugin allows attackers to execute scripts against admin users, potentially leading to account takeover.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"WPScan","cpe":[{"product":"post_smtp","vendor":"wpexperts"}],"cvss":{"score":6.1,"severity":"medium","source":"cisa-adp","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 POST SMTP WordPress plugin before 2.8.7 does not sanitise and escape the msg parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Post SMTP \u003c 2.8.7 - Reflected Cross-Site Scripting","id":"CVE-2023-6621","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Kernel: null pointer dereference vulnerability in nft_dynset_init()","id":"CVE-2023-6622"},"packages":[],"prev":{"headline":"Post SMTP \u003c 2.8.7 - Admin+ SQL Injection","id":"CVE-2023-6620"},"products":["POST SMTP"],"published":"2024-01-03","related":[{"cvss_score":9.8,"headline":"Auth bypass in Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP \u0026 Mobile App","id":"CVE-2023-6875","kev_date_added":null,"published":"2024-01-11"},{"cvss_score":8.8,"headline":"POST SMTP Mailer \u003c 2.5.7 - Account Takeover via CSRF","id":"CVE-2023-3179","kev_date_added":null,"published":"2023-07-17"},{"cvss_score":8.6,"headline":"WordPress POST SMTP Mailer plugin \u003c= 2.8.6 - Broken Access Control on API vulnerability","id":"CVE-2023-52233","kev_date_added":null,"published":"2024-06-11"},{"cvss_score":7.6,"headline":"WordPress Post SMTP plugin \u003c= 2.9.9 - SQL Injection vulnerability","id":"CVE-2024-52436","kev_date_added":null,"published":"2024-11-18"},{"cvss_score":7.2,"headline":"Post SMTP \u003c= 3.0.2 - Unauthenticated Stored Cross-Site Scripting","id":"CVE-2025-0521","kev_date_added":null,"published":"2025-02-18"},{"cvss_score":7.2,"headline":"SQL injection in Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP \u0026 Mobile App","id":"CVE-2024-5207","kev_date_added":null,"published":"2024-05-30"},{"cvss_score":7.2,"headline":"Post SMTP \u003c 2.8.7 - Admin+ SQL Injection","id":"CVE-2023-6620","kev_date_added":null,"published":"2024-01-15"}],"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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-06-18","vendors":["Unknown"]},"summary":"Reflected XSS in POST SMTP plugin allows attackers to execute scripts against admin users, potentially leading to account takeover.","url":"https://insights.sbomify.com/CVE-2023-6621/"}