{"id":"RUSTSEC-2021-0158","summary":"XSS in ammonia via SVG `animateMotion`, `animateTransform`, and/or `animateColor` tags","details":"The neutralization that ammonia applied to `animate` and `set` was not applied to other forms of SVG animation, which can be used for XSS.\n\nThe following SVG will produce a link with a javascript scheme.\nIf the user clicks this link, they will run it.\n\n```xml\n\u003csvg xmlns=\"http://www.w3.org/2000/svg\"\u003e\n  \u003ca\u003e\n    \u003canimateMotion attributeName=\"href\" to=\"javascript:alert('SET_XSS')\"\u003e\u003c/animateMotion\u003e\n    \u003ctext y=\"30\"\u003eClick set\u003c/text\u003e\n  \u003c/a\u003e\n\u003c/svg\u003e\n```\n\nAmmonia did not apply attribute filters based on `attributeName`,\nso the contents of the `to`, `from`, and `values` tags were not sanitized as URLs.\n\nApplications that do not explicitly allow any of these tags should not be affected,\nsince none are allowed by default.\n\n---\n\nThis vulnerability was reported by [ucsurf](https://uc.surf).","aliases":["GHSA-f2pc-rwv3-69mv"],"modified":"2026-10-13T07:30:02.289306454Z","published":"2021-10-10T12:00:00Z","database_specific":{"license":"CC0-1.0"},"references":[{"type":"PACKAGE","url":"https://crates.io/crates/ammonia"},{"type":"ADVISORY","url":"https://rustsec.org/advisories/RUSTSEC-2021-0158.html"},{"type":"WEB","url":"https://github.com/rust-ammonia/ammonia/pull/261"}],"affected":[{"package":{"name":"ammonia","ecosystem":"crates.io","purl":"pkg:cargo/ammonia"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"},{"fixed":"4.1.7"},{"introduced":"4.2.0"},{"fixed":"4.2.3"}]}],"ecosystem_specific":{"affected_functions":null,"affects":{"os":[],"functions":[],"arch":[]}},"database_specific":{"cvss":null,"informational":null,"categories":["format-injection"],"source":"https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2021-0158.json"}}],"schema_version":"1.9.0"}