CVE-2021-29272: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

May 18, 2021

bluemonday before 1.0.5 allows XSS because certain Go lowercasing converts an uppercase Cyrillic character, defeating a protection mechanism against the “script” string.

References

github.com/advisories/GHSA-3x58-xr87-2fcj
github.com/microcosm-cc/bluemonday/commit/524f142fe46e945b7dcd291d7805c4b7dcf75bee
github.com/microcosm-cc/bluemonday/issues/111
github.com/microcosm-cc/bluemonday/releases/tag/v1.0.5
nvd.nist.gov/vuln/detail/CVE-2021-29272

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