Cyber Resilience

CVE-2021-25086

MediumPublic PoC

Published: 02 May 2022

Published
02 May 2022
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 0.1689 95.1th percentile
Risk Priority 22 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-25086 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Advanced Page Visit Counter Project Advanced Page Visit Counter. Its CVSS base score is 6.1 (Medium).

Operationally, ranked in the top 4.9% 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

The Advanced Page Visit Counter WordPress plugin before 6.1.2 does not sanitise and escape some input before outputting it in an admin dashboard page, allowing unauthenticated attackers to perform Cross-Site Scripting attacks against admins viewing it

CWE(s)
CWE-79

Related Threats

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

Affected Assets

advanced page visit counter project
advanced page visit counter
≤ 6.1.2

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