Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
4 results
Oct 15, 2026ammonia is a Rust library for repairing and securing untrusted HTML.CVE-2026-63430 · Other software · rust-ammonia · reported by GitHubMedium 6.3
ammonia is a Rust library for repairing and securing untrusted HTML. Prior to 3.3.2, 4.0.2, and 4.1.3, applications that explicitly allow the math tag, annotation-xml, and at least one raw-text HTML element while disallowing the encoding attribute can permit mutation cross-site scripting. ammonia does not correctly implement annotation-xml's encoding-dependent MathML integration-point behavior after attribute filtering removes encoding, so the sanitizer validates a descendant under one namespace interpretation while the browser reparses the output under another. An attacker can use that namespace transition and an allowed raw-text HTML element to execute JavaScript when a user renders the sanitized output. The required tags are not enabled by default, so applications that do not explicitly allow them are not affected. This issue is fixed in versions 3.3.2, 4.0.2, and 4.1.3.
- Product
- ammonia
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026ammonia is a Rust library for repairing and securing untrusted HTML.CVE-2026-102342 · Other software · rust-ammonia · reported by GitHubMedium 5.4
ammonia is a Rust library for repairing and securing untrusted HTML. Prior to 3.3.3, 4.0.3, and 4.1.4, applications that allow the SVG animate or set elements can retain an animation whose attributeName targets href and whose value uses the javascript scheme. The sanitized SVG can therefore create a script-bearing link, and a user who clicks the link can execute attacker-controlled script in the application's origin, enabling stored cross-site scripting. This issue is fixed in versions 3.3.3, 4.0.3, and 4.1.4.
- Product
- ammonia
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 8, 2021An issue was discovered in the ammonia crate before 3.1.0 for Rust.CVE-2021-38193 · Other software · Ammonia Project · reported by MITREMedium 6.1
An issue was discovered in the ammonia crate before 3.1.0 for Rust. XSS can occur because the parsing differences for HTML, SVG, and MathML are mishandled, a similar issue to CVE-2020-26870.
- Product
- Ammonia
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordraw.githubusercontent.comrustsec.org
Aug 26, 2019An issue was discovered in the ammonia crate before 2.1.0 for Rust.CVE-2019-15542 · Other software · Ammonia Project · reported by MITREHigh 7.5
An issue was discovered in the ammonia crate before 2.1.0 for Rust. There is uncontrolled recursion during HTML DOM tree serialization.
- Product
- Ammonia
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordrustsec.orgrustsec.org
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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