{"answers":{"affected":"2 open source packages ship an affected version, including mantisbt/mantisbt.","exploited":"There is no known exploitation of CVE-2026-40607 in the wild and no public exploit code.","fix":"Upgrade mantisbt/mantisbt to 2.28.2 or later.","what":"CVE-2026-40607 is a high-severity cross-site scripting vulnerability in mantisbt, published on 22 May 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-40607 and fix it if it is affected.\n\nWhat it is: CVE-2026-40607 is a high-severity cross-site scripting vulnerability in mantisbt, published on 22 May 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-40607 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- mantisbt/mantisbt (Packagist): affected from 2.1.0; fixed in 2.28.2\n- mantisbt/mantisbt (Packagist): affected from 2.1.0; fixed in 2.28.2\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-2026-40607/ (Markdown: https://insights.sbomify.com/CVE-2026-40607/index.md)","id":"CVE-2026-40607","markdown":"https://insights.sbomify.com/CVE-2026-40607/index.md","name":"CVE-2026-40607","record":{"aliases":["GHSA-f633-865q-2mhh"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":true,"product_category":"Issue tracking system","requires_auth":"high_privilege","summary":"Attackers can inject arbitrary HTML via saved filter owners in MantisBT, potentially leading to session hijacking or malicious script execution.","user_interaction":"not_required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Mantis Bug Tracker (MantisBT) is an open source issue tracker. In versions 2.11.0 through 2.28.1, a Stored XSS vulnerability is caused by incorrect escaping of a saved filter's owner, allowing an attacker to inject arbitrary HTML on systems where $g_show_user_realname = ON. Note that By default, only users with Manager access level or above can save their filters publicly. This issue has been fixed in version 2.28.2. If developers are unable to update immediately, they can work around this issue by preventing display of users' real names (set $g_ show_user_realname = OFF; in configuration), and restricting the ability to store filters (set $g_stored_query_create_threshold / $g_stored_query_create_shared_threshold to NOBODY).","ecosystems":["Packagist"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"MantisBT is Vulnerable to Stored XSS Through its Saved-Filter Owner Column","id":"CVE-2026-40607","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":null,"products":[],"type":"xss","year":"2026"},"n_packages":2,"n_references":3,"next":{"headline":"Next AI Draw.io: Unbounded HTTP Body — Denial of Service","id":"CVE-2026-40608"},"packages":[{"ecosystem":"Packagist","fixed":["2.28.2"],"introduced":["2.1.0"],"last_affected":[],"package":"mantisbt/mantisbt","purl":null,"source":"GHSA-f633-865q-2mhh"},{"ecosystem":"Packagist","fixed":["2.28.2"],"introduced":["2.1.0"],"last_affected":[],"package":"mantisbt/mantisbt","purl":"pkg:composer/mantisbt/mantisbt","source":"GHSA-f633-865q-2mhh"}],"prev":{"headline":"ProxyAuth Addon LDAP Injection in mitmproxy","id":"CVE-2026-40606"},"products":["mantisbt"],"published":"2026-05-22","related":[],"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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-05-26","vendors":["mantisbt"]},"summary":"Attackers can inject arbitrary HTML via saved filter owners in MantisBT, potentially leading to session hijacking or malicious script execution.","url":"https://insights.sbomify.com/CVE-2026-40607/"}