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Medium severity6.1NVD Advisory· Published Jun 21, 2021· Updated Jun 17, 2026

CVE-2021-28833

CVE-2021-28833

Description

Increments Qiita::Markdown before 0.34.0 allows XSS via a crafted gist link, a different vulnerability than CVE-2021-28796.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
qiita-markdownRubyGems	< 0.34.0	0.34.0

Affected products

3

Increments/Qiita\
cpe:2.3:a:increments:qiita\:\:markdown:*:*:*:*:*:*:*:*
Range: <0.34.0
Qiita/Qiita::Markdowndescription
ghsa-coords
pkg:gem/qiita-markdown
Range: < 0.34.0

Patches

Vulnerability mechanics

References

6

github.com/advisories/GHSA-9p29-94hp-8rvcghsaADVISORY
github.com/increments/qiita-markdown/releasesnvdThird Party AdvisoryWEB
nvd.nist.gov/vuln/detail/CVE-2021-28833ghsaADVISORY
vuln.ryotak.me/advisories/50nvdThird Party AdvisoryWEB
github.com/increments/qiita-markdown/commit/b5d4e60bf537ceb177e70bf91653d29575e1aa21ghsaWEB
github.com/increments/qiita-markdown/compare/v0.33.0...v0.34.0ghsaWEB

News mentions

0

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