{"answers":{"affected":"1 open source package ship an affected version, including ammonia.","exploited":"There is no known exploitation of RUSTSEC-2021-0157 in the wild and no public exploit code.","fix":"Upgrade ammonia to a fixed version for your release line: 4.1.7 or 4.2.3.","what":"RUSTSEC-2021-0157 is a cross-site scripting vulnerability in ammonia, published on 10 Oct 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for RUSTSEC-2021-0157 and fix it if it is affected.\n\nWhat it is: RUSTSEC-2021-0157 is a cross-site scripting vulnerability in ammonia, published on 10 Oct 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of RUSTSEC-2021-0157 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- ammonia (crates.io): affected from 0.0.0-0; fixed in 4.1.7, 4.2.3\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/RUSTSEC-2021-0157/ (Markdown: https://insights.sbomify.com/RUSTSEC-2021-0157/index.md)","id":"RUSTSEC-2021-0157","markdown":"https://insights.sbomify.com/RUSTSEC-2021-0157/index.md","name":"RUSTSEC-2021-0157","record":{"aliases":["GHSA-69v2-w9vg-4g83"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"Rust HTML sanitizer","requires_auth":"none","summary":"Incorrect escaping in CSS url() functions allows CSS injection, potentially leading to XSS, when style attributes are enabled.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In some cases, quotation marks in CSS url() functions are not escaped. This allows CSS injection. This feature is not enabled by default, so an application is vulnerable if, and only if, the style attribute is allowed and filter_style_properties is used.\n\nAs an example, this snippet:\n\n```html\n\u003cdiv style='background:url(\"cid:\\\");EVIL_CSS_HERE;background:url(\\\"cid:\")'\u003e\n```\n\nWould erroneously \"sanitize\" to:\n\n```html\n\u003cdiv style='background:url(\"cid:\");EVIL_CSS_HERE;background:url(\"cid:\")'\u003e\n```\n\n---\n\nThis vulnerability was reported by Uttej Badwane","ecosystems":["crates.io"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":true,"headline":"Incorrect escaping for `url(\"\")` functions in CSS style attributes","id":"RUSTSEC-2021-0157","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"xss","year":"2021"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"crates.io","fixed":["4.1.7","4.2.3"],"introduced":["0.0.0-0","4.2.0"],"last_affected":[],"package":"ammonia","purl":"pkg:cargo/ammonia","source":"RUSTSEC-2021-0157"}],"products":null,"published":"2021-10-10","related":[],"sources":[{"class":"open","licence":"CC0 1.0","name":"RustSec","prefix":"RUSTSEC"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":"Incorrect escaping in CSS url() functions allows CSS injection, potentially leading to XSS, when style attributes are enabled.","url":"https://insights.sbomify.com/RUSTSEC-2021-0157/"}