CVE-2021-28796
Published: 18 March 2021
Summary
CVE-2021-28796 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Increments Qiita\. Its CVSS base score is 6.1 (Medium).
Operationally, ranked at the 44.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
This vulnerability is AI-related — categorised as NLP and Transformers.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-1689
Vulnerability details
Increments Qiita::Markdown before 0.33.0 allows XSS in transformers.
- CWE(s)
AI Security AnalysisAI
- AI Category
- NLP and Transformers
- Risk Domain
- N/A
- OWASP Top 10 for LLMs 2025
- None mapped
- Classification Reason
- Matched keywords: transformers
Related Threats
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.