Cyber Resilience

CVE-2021-23260

Medium

Published: 02 December 2021

Published
02 December 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:L
EPSS Score 0.0048 65.3th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-23260 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Craftercms Crafter Cms. Its CVSS base score is 6.5 (Medium).

Operationally, ranked in the top 34.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Authenticated users with Site roles may inject XSS scripts via file names that will execute in the browser for this and other users of the same site.

CWE(s)

Related Threats

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

Affected Assets

craftercms
crafter cms
3.1.0 — 3.1.12

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.

addresses: CWE-79

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

addresses: CWE-79

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

addresses: CWE-79

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

References