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Bidda Sovereign Intelligence · 10,065 Verified Nodes · 39 Sovereign Pillars

MITRE CAPEC-53: Postfix, Null Terminate, and Backslash (Detailed Attack Pattern - High Severity)

MITRE CAPEC-53 (Postfix, Null Terminate, and Backslash) is a detailed-level attack pattern in the MITRE Common Attack Pattern Enumeration and…

Compliance Node Overview

MITRE CAPEC-53 (Postfix, Null Terminate, and Backslash) is a detailed-level attack pattern in the MITRE Common Attack Pattern Enumeration and Classification. If a string is passed through a filter of some kind, then a terminal NULL may not be valid. Using alternate representation of NULL allows an adversary to embed the NULL mid-string while postfixing the proper data so that the filter is avoided. One example is a filter that looks for a trailing slash character. Likelihood of attack: High. Typical severity: High. Maps to weaknesses CWE-158, CWE-172, CWE-173, CWE-74, and others.

Pillar: Cybersecurity · Authority: MITRE Corporation · Version: 1.0.0 · Last updated: 2026-05-25

Primary source: https://capec.mitre.org/data/definitions/53.html

SHA-256 integrity: 38cb53ad0ad84404c5108c74a5b4ad26f99eda078d7ddae90a7a4464b77b8a8e

Primary Citations — 10 traced to source

MITRE CAPEC-53: Postfix, Null Terminate, and Backslash (https://capec.mitre.org/data/definitions/53.html)
CWE-158: underlying weakness (http://cwe.mitre.org/data/definitions/158.html)

+ 8 more citations (full bibliography, deterministic workflow, actionable schema and crosswalks) included in the vault unlock — $0.01 via Skyfire / L402 / Direct Base USDC.

Access

Discovery (free): /api/v1/nodes/mitre-capec-capec-53-postfix-null-terminate-and-backslash.json — 6-field metadata
Vault (full node): /api/v1/vault/nodes/mitre-capec-capec-53-postfix-null-terminate-and-backslash.json — full 13-key payload, $0.01 USDC (L402/Skyfire/Direct Base)
Canonical URL: https://bidda.com/intelligence/mitre-capec-capec-53-postfix-null-terminate-and-backslash
Back to registry: Browse all 10,065 compliance nodes

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