{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-35057 exists.","fix":"No fix has been published for CVE-2026-35057 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-35057 is a medium-severity cross-site scripting vulnerability in XenForo, published on 1 Apr 2026. 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-2026-35057 and fix it if it is affected.\n\nWhat it is: CVE-2026-35057 is a medium-severity cross-site scripting vulnerability in XenForo, published on 1 Apr 2026. Any signed-in user can exploit it over the network, 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-2026-35057 exists.\n\nAffected product: XenForo. 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-2026-35057/ (Markdown: https://insights.sbomify.com/CVE-2026-35057/index.md)","id":"CVE-2026-35057","markdown":"https://insights.sbomify.com/CVE-2026-35057/index.md","name":"CVE-2026-35057","record":{"aliases":["GHSA-vrhx-2966-qqfp"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"XenForo forum software","requires_auth":"low_privilege","summary":"Attackers can inject malicious scripts via structured text mentions in XenForo, leading to stored XSS and potential account takeover.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"xenforo","vendor":"xenforo"}],"cvss":{"score":5.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"XenForo before 2.3.10 and before 2.2.19 is vulnerable to stored cross-site scripting (XSS) in structured text mentions, primarily affecting legacy profile post content. An attacker can inject malicious scripts through crafted mentions that are stored and executed when other users view the content.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"XenForo Stored Cross-Site Scripting via Structured Text Mentions","id":"CVE-2026-35057","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Denial of service in OpenVPN","id":"CVE-2026-35058"},"packages":[],"prev":{"headline":"XenForo Remote Code Execution via Authenticated Admin","id":"CVE-2026-35056"},"products":["XenForo"],"published":"2026-04-01","related":[{"cvss_score":9.3,"headline":"XenForo Passkey Security Bypass","id":"CVE-2025-71279","kev_date_added":null,"published":"2026-04-01"},{"cvss_score":9.1,"headline":"XenForo \u003c 2.3.13 Authentication Bypass via OAuth2 Token Endpoint","id":"CVE-2026-73309","kev_date_added":null,"published":"2026-09-08"},{"cvss_score":9.1,"headline":"XenForo \u003c 2.3.13 OAuth2 Authorization Code Reuse","id":"CVE-2026-73311","kev_date_added":null,"published":"2026-09-08"},{"cvss_score":9.1,"headline":"XenForo \u003c 2.3.13 Refresh Token Replay via Expired Access Token","id":"CVE-2026-73312","kev_date_added":null,"published":"2026-09-08"},{"cvss_score":8.8,"headline":"Xenforo before 2.2.16 allows CSRF.","id":"CVE-2024-38457","kev_date_added":null,"published":"2024-06-16"},{"cvss_score":8.8,"headline":"Code injection in n/a","id":"CVE-2024-38458","kev_date_added":null,"published":"2024-06-16"},{"cvss_score":8.7,"headline":"XenForo \u003c 2.3.13 Signature Verification Bypass via PayPal REST Webhook","id":"CVE-2026-73314","kev_date_added":null,"published":"2026-09-08"}],"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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-24","vendors":["XenForo"]},"summary":"Attackers can inject malicious scripts via structured text mentions in XenForo, leading to stored XSS and potential account takeover.","url":"https://insights.sbomify.com/CVE-2026-35057/"}