{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47733 exists.","fix":"No fix has been published for CVE-2026-47733 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-47733 is a medium-severity cross-site scripting vulnerability in RocketChat Rocket.Chat, published on 24 Jun 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-2026-47733 and fix it if it is affected.\n\nWhat it is: CVE-2026-47733 is a medium-severity cross-site scripting vulnerability in RocketChat Rocket.Chat, published on 24 Jun 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-2026-47733 exists.\n\nAffected product: RocketChat Rocket.Chat. 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-2026-47733/ (Markdown: https://insights.sbomify.com/CVE-2026-47733/index.md)","id":"CVE-2026-47733","markdown":"https://insights.sbomify.com/CVE-2026-47733/index.md","name":"CVE-2026-47733","record":{"aliases":["GHSA-vvrf-fq54-q4pr"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Rocket.Chat","requires_auth":"low_privilege","summary":"Authenticated users can inject JavaScript via markdown images, potentially executing code in viewers' sessions.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":4.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/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":"Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.0, the ImageElement component in packages/gazzodown renders user-controlled src values directly into \u003ca href\u003e and \u003cimg src\u003e attributes without protocol sanitization. Unlike the analogous LinkSpan component — which uses sanitizeUrl to block javascript:, data:, and vbscript: protocols — ImageElement passes the raw URL through unchanged. An authenticated user can post a markdown image with a javascript: URL that, if clicked on an older browser, would execute arbitrary JavaScript in the viewer's session. This vulnerability is fixed in 8.5.0.","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":"Rocket.Chat: Missing URL protocol sanitization in ImageElement allows javascript: URLs in markdown images","id":"CVE-2026-47733","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Dulwich has unbounded memory allocation in receive-pack from crafted thin packs","id":"CVE-2026-47734"},"packages":[],"prev":{"headline":"Twig Sandbox: multiple `__toString()` policy bypasses via unguarded string coercion points","id":"CVE-2026-47732"},"products":["Rocket.Chat"],"published":"2026-06-24","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":"partial"},"state":"PUBLISHED","updated":"2026-06-25","vendors":["RocketChat"]},"summary":"Authenticated users can inject JavaScript via markdown images, potentially executing code in viewers' sessions.","url":"https://insights.sbomify.com/CVE-2026-47733/"}