Cyber Resilience

CVE-2021-28378

LowPublic PoC

Published: 15 March 2021

Published
15 March 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 3.7 CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
EPSS Score 0.1183 93.9th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-28378 is a low-severity Cross-site Scripting (CWE-79) vulnerability in Gitea Gitea. Its CVSS base score is 3.7 (Low).

Operationally, ranked in the top 6.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Gitea 1.12.x and 1.13.x before 1.13.4 allows XSS via certain issue data in some situations.

CWE(s)
CWE-79

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

gitea
gitea
1.12.0 — 1.12.6 · 1.13.0 — 1.13.4

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.

CA-8 Penetration Testing
addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

SI-10 Information Input Validation
addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

SI-15 Information Output Filtering
addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

References