{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-43887 exists.","fix":"No fix has been published for CVE-2026-43887 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-43887 is a high-severity cross-site scripting vulnerability in outline, published on 11 May 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-2026-43887 and fix it if it is affected.\n\nWhat it is: CVE-2026-43887 is a high-severity cross-site scripting vulnerability in outline, published on 11 May 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-2026-43887 exists.\n\nAffected product: outline. 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-2026-43887/ (Markdown: https://insights.sbomify.com/CVE-2026-43887/index.md)","id":"CVE-2026-43887","markdown":"https://insights.sbomify.com/CVE-2026-43887/index.md","name":"CVE-2026-43887","record":{"aliases":["GHSA-rqrg-f3qc-xvgh"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Collaborative documentation service","requires_auth":"low_privilege","summary":"Attackers can execute arbitrary JavaScript in victim browsers by injecting malicious href attributes into comment mentions.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.3,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Outline is a service that allows for collaborative documentation. From 0.84.0 to 1.6.1, the Outline comment section permits users to mention other users; however, the backend does not validate or sanitize the href attribute associated with these mentions. As a result, potentially dangerous protocols (e.g., javascript:) are not filtered, introducing a risk of client-side code execution. This vulnerability is fixed in 1.7.0.","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":"Outline: Stored XSS via Comment Mentions","id":"CVE-2026-43887","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Outline: Zip Extraction Path Escape via PATH_MAX Truncation in Collection Import","id":"CVE-2026-43888"},"packages":[],"prev":{"headline":"Outline: OAuth Scope Validation Logic Error Allows Privilege Escalation to Wildcard API Access","id":"CVE-2026-43886"},"products":["outline"],"published":"2026-05-11","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":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-05-15","vendors":["outline"]},"summary":"Attackers can execute arbitrary JavaScript in victim browsers by injecting malicious href attributes into comment mentions.","url":"https://insights.sbomify.com/CVE-2026-43887/"}