CVE-2021-23130

Medium

Published: 04 March 2021

Published

04 March 2021

Modified

21 November 2024

KEV Added

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Patch

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CVSS Score v3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Score 0.0086 75.4th percentile

Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-23130 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Joomla Joomla\!. Its CVSS base score is 6.1 (Medium).

Operationally, ranked in the top 24.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

An issue was discovered in Joomla! 2.5.0 through 3.9.24. Missing filtering of feed fields could lead to xss issues.

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

joomla

joomla\!

2.5.0 — 3.9.25

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.