{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-84677 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-84677 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-84677 is a medium-severity cross-site scripting vulnerability in Jenkins update-center2, published on 2 Sep 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-2026-84677 and fix it if it is affected.\n\nWhat it is: CVE-2026-84677 is a medium-severity cross-site scripting vulnerability in Jenkins update-center2, published on 2 Sep 2026. 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-2026-84677 in the wild and no public exploit code.\n\nAffected product: Jenkins update-center2. 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-2026-84677/ (Markdown: https://insights.sbomify.com/CVE-2026-84677/index.md)","id":"CVE-2026-84677","markdown":"https://insights.sbomify.com/CVE-2026-84677/index.md","name":"CVE-2026-84677","record":{"aliases":["GHSA-m2jq-fx7h-7hr9"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Jenkins update center","requires_auth":"low_privilege","summary":"Stored XSS in Jenkins update center allows attackers to inject scripts via plugin metadata, potentially compromising user sessions.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jenkins","cpe":[],"cvss":{"score":5.4,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:L/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":"Jenkins update-center2 3.18.3 and earlier does not escape plugin-provided values (plugin names, descriptions, and version metadata) on plugin download index pages, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to provide a plugin for hosting.","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":"Cross-site scripting in Jenkins update-center2","id":"CVE-2026-84677","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"TDDPv2 setProductVer Command Injection in Archer AX90","id":"CVE-2026-84682"},"packages":[],"prev":{"headline":"Information disclosure in Jenkins Parameterized Remote Trigger Plugin","id":"CVE-2026-84676"},"products":["Jenkins update-center2"],"published":"2026-09-02","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-09-02","vendors":["Jenkins Project"]},"summary":"Stored XSS in Jenkins update center allows attackers to inject scripts via plugin metadata, potentially compromising user sessions.","url":"https://insights.sbomify.com/CVE-2026-84677/"}