CVE-2018-19057: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

November 21, 2018 (updated September 21, 2021)

SimpleMDE has XSS via an onerror attribute of a crafted IMG element, or via certain input with [ and ( characters, which is mishandled during construction of an A element.

References

github.com/advisories/GHSA-wg85-p6j7-gp3w
github.com/sparksuite/simplemde-markdown-editor/issues/721
nvd.nist.gov/vuln/detail/CVE-2018-19057

Code Behaviors & Features

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