CWE-692Incomplete Denylist to Cross-Site Scripting

Abstraction: Compound · CVEs in our corpus: 10

The product uses a denylist-based protection mechanism to defend against XSS attacks, but the denylist is incomplete, allowing XSS variants to succeed.

While XSS might seem simple to prevent, web browsers vary so widely in how they parse web pages, that a denylist cannot keep track of all the variations. The "XSS Cheat Sheet" [REF-714] contains a large number of attacks that are intended to bypass incomplete denylists.

Last updated: 20 August 2026 14:15 UTC

Cumulative inbound coverage

How completely the frameworks we cross-walk collectively cover this — the verdict is the strongest single mapping (overlapping partials are not summed); breadth shows the corroboration behind it.

Collective: partial · 4 mapping(s) from 1 framework(s): CAPEC 4 (partial)

See the full cumulative-coverage rollup →

Control responseHuman-reviewed

Answering this weakness across the control lifecycle, from our framework cross-walks.

Prevent

Stop it (NIST 800-53 / CSF Protect)

PR.PS-06
SI-10 Information Input Validation
SA-8 Security and Privacy Engineering Principles

Detect

Catch it (CSF Detect / Respond)

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Harden

Shrink the surface (DISA STIG)

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Validate

Prove the fix (OWASP ASVS)

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NIST 800-53 r5 controls that address this weakness (0)AI-assisted

Control	Title	Family	Why it addresses this CWE
No NIST controls proposed yet.

Top CVEs of this weakness type, ranked by Risk Priority

CVE	Risk	CVSS	EPSS	Published
`CVE-2023-26047`	5.2	6.5	0.0052	2023-03-03
`CVE-2024-52305`	5.0	6.5	0.0019	2024-11-13
`CVE-2025-49590`	4.5	6.1	0.0029	2025-06-18
`CVE-2025-20240`	4.5	6.1	0.0027	2025-09-24
`CVE-2026-71478`	4.4	6.1	0.0020	2026-08-06
`CVE-2024-42214`	4.3	5.3	0.0020	2026-07-17
`CVE-2024-30924`	3.6	4.6	0.0034	2024-04-18
`CVE-2024-23569`	3.5	4.3	0.0018	2026-07-17
`CVE-2026-15295`	3.3	4.4	0.0019	2026-07-10