{"answers":{"affected":"4 open source packages ship an affected version, including concrete5/concrete5. It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-8571 in the wild and no public exploit code.","fix":"Upgrade concrete5/concrete5 to a fixed version for your release line: 8.5.21 or 9.4.3.","what":"CVE-2025-8571 is a medium-severity cross-site scripting vulnerability in Concretecms Concrete Cms, published on 5 Aug 2025. 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-2025-8571 and fix it if it is affected.\n\nWhat it is: CVE-2025-8571 is a medium-severity cross-site scripting vulnerability in Concretecms Concrete Cms, published on 5 Aug 2025. 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-2025-8571 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- concrete5/concrete5 (Packagist): affected all versions; fixed in 8.5.21\n- concrete5/concrete5 (Packagist): affected all versions; fixed in 8.5.21\n- concrete5/concrete5 (Packagist): affected from 9.0.0RC1; fixed in 9.4.3\n- concrete5/concrete5 (Packagist): affected from 9.0.0RC1; fixed in 9.4.3\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-2025-8571/ (Markdown: https://insights.sbomify.com/CVE-2025-8571/index.md)","id":"CVE-2025-8571","markdown":"https://insights.sbomify.com/CVE-2025-8571/index.md","name":"CVE-2025-8571","record":{"aliases":["GHSA-4pcg-pjp5-3mc6"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Concrete CMS","requires_auth":"high_privilege","summary":"Attackers can inject malicious scripts into the Conversation Messages Dashboard Page to steal session cookies or perform unauthorized actions.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"ConcreteCMS","cpe":[{"product":"concrete_cms","vendor":"concretecms"}],"cvss":{"score":4.8,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"},{"id":"CWE-20","name":"Improper Input Validation"}],"description":"Concrete CMS 9 to 9.4.2 and versions below 8.5.21 are vulnerable to Reflected Cross-Site Scripting (XSS) in the Conversation Messages Dashboard Page. Unsanitized input could cause theft of session cookies or tokens, defacement of web content, redirection to malicious sites, and (if victim is an admin), the execution of unauthorized actions. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 4.8 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks  Fortbridge https://fortbridge.co.uk/  for performing a penetration test and vulnerability assessment on Concrete CMS and reporting this issue.","ecosystems":["Packagist"],"exploits":{"exploitdb":0,"first_seen":"2025-09-12","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2025-09-12T14:54:26Z","kind":"github_poc","ref":"https://github.com/chimdi2700/CVE-2025-8571","stars":0,"title":"CVE-2025-8571"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Concrete CMS vulnerable to Reflected Cross-Site Scripting (XSS) in Conversation Messages Dashboard Page","id":"CVE-2025-8571","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":"concretecms:concrete_cms","products":["concretecms:concrete_cms"],"type":"xss","year":"2025"},"n_packages":4,"n_references":3,"next":{"headline":"Truelysell Core \u003c= 1.8.7 - Unauthenticated Privilege Escalation via Registration","id":"CVE-2025-8572"},"packages":[{"ecosystem":"Packagist","fixed":["8.5.21"],"introduced":["0"],"last_affected":[],"package":"concrete5/concrete5","purl":null,"source":"GHSA-4pcg-pjp5-3mc6"},{"ecosystem":"Packagist","fixed":["8.5.21"],"introduced":["0"],"last_affected":[],"package":"concrete5/concrete5","purl":"pkg:composer/concrete5/concrete5","source":"GHSA-4pcg-pjp5-3mc6"},{"ecosystem":"Packagist","fixed":["9.4.3"],"introduced":["9.0.0RC1"],"last_affected":[],"package":"concrete5/concrete5","purl":null,"source":"GHSA-4pcg-pjp5-3mc6"},{"ecosystem":"Packagist","fixed":["9.4.3"],"introduced":["9.0.0RC1"],"last_affected":[],"package":"concrete5/concrete5","purl":"pkg:composer/concrete5/concrete5","source":"GHSA-4pcg-pjp5-3mc6"}],"prev":{"headline":"Auth bypass in BeyondCart Connector","id":"CVE-2025-8570"},"products":["Concrete CMS"],"published":"2025-08-05","related":[{"cvss_score":9.8,"headline":"Concrete CMS allows unauthorized access because directories can be created with insecure permissions","id":"CVE-2023-48648","kev_date_added":null,"published":"2023-11-17"},{"cvss_score":9.8,"headline":"Code injection in concrete CMS","id":"CVE-2022-21829","kev_date_added":null,"published":"2022-06-24"},{"cvss_score":9.8,"headline":"Server-Side Request Forgery vulnerability in concrete5","id":"CVE-2021-22958","kev_date_added":null,"published":"2021-10-07"},{"cvss_score":9.8,"headline":"Path traversal in n/a","id":"CVE-2021-40098","kev_date_added":null,"published":"2021-09-27"},{"cvss_score":9.4,"headline":"Concrete CMS Vulnerable to Relative Path Traversal","id":"CVE-2026-8134","kev_date_added":null,"published":"2026-05-21"},{"cvss_score":9.1,"headline":"Path traversal in Concrete CMS","id":"CVE-2022-30117","kev_date_added":null,"published":"2022-06-24"},{"cvss_score":9.1,"headline":"Deserialization in n/a","id":"CVE-2021-40102","kev_date_added":null,"published":"2021-09-24"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-08-06","vendors":["Concrete CMS"]},"summary":"Attackers can inject malicious scripts into the Conversation Messages Dashboard Page to steal session cookies or perform unauthorized actions.","url":"https://insights.sbomify.com/CVE-2025-8571/"}