RUSTSEC-2025-0071

    Dashboard / Vulnerabilities / RUSTSEC-2025-0071

    RUSTSEC-2025-0071

    Published: 21 Sept 2025Last Modified: 28 Oct 2025

    Summary: Incorrect handling of embedded SVG and MathML leads to mutation XSS after removal

    Details: Affected versions of this crate did not correctly strip namespace-incompatible tags in certain situations, causing it to incorrectly account for differences between HTML, SVG, and MathML. This vulnerability only has an effect when the `svg` or `math` tag is allowed, because it relies on a tag being parsed as html during the cleaning process, but serialized in a way that causes in to be parsed as xml by the browser. Additionally, the application using this library must allow a tag that is parsed as raw text in HTML. These [elements] are: * title * textarea * xmp * iframe * noembed * noframes * plaintext * noscript * style * script Applications that do not explicitly allow any of these tags should not be affected, since none are allowed by default. [elements]: https://github.com/servo/html5ever/blob/57eb334c0ffccc6f88d563419f0fbeef6ff5741c/html5ever/src/tree_builder/rules.rs

    References: https://crates.io/crates/ammonia, https://rustsec.org/advisories/RUSTSEC-2025-0071.html

    Affected packages

    Package

    Name: ammonia

    Purl: pkg:cargo/ammonia

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0.0.0-0
    Fixed -3.3.1

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    RUSTSEC-2025-0071 | CVE-DB