CWE-530Exposure of Backup File to an Unauthorized Control Sphere

Abstraction: Variant · CVEs in our corpus: 12

A backup file is stored in a directory or archive that is made accessible to unauthorized actors.

Often, older backup files are renamed with an extension such as .~bk to distinguish them from production files. The source code for old files that have been renamed in this manner and left in the webroot can often be retrieved. This renaming may have been performed automatically by the web server, or manually by the administrator.

Last updated: 20 August 2026 13:14 UTC

Control responseHuman-reviewed

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

Prevent

Stop it (NIST 800-53 / CSF Protect)

PR.DS-11
AC-3 Access Enforcement
AC-6 Least Privilege
MP-2 Media Access

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-2020-36899`	6.0	7.5	0.0094	2025-12-10
`CVE-2024-12330`	5.9	7.5	0.0051	2025-01-09
`CVE-2024-56462`	5.4	7.2	0.0046	2026-05-27
`CVE-2025-3773`	4.1	5.5	0.0012	2025-06-26
`CVE-2023-5297`	3.4	3.7	0.0068	2023-09-29
`CVE-2024-3124`	2.3	2.4	0.0028	2024-04-01
`CVE-2024-3128`	2.3	2.4	0.0027	2024-04-01
`CVE-2024-3430`	2.2	2.4	0.0022	2024-04-07
`CVE-2026-2974`	2.1	2.5	0.0010	2026-02-23
`CVE-2026-13514`	2.1	2.4	0.0013	2026-06-29
`CVE-2024-2364`	1.9	1.8	0.0033	2024-03-10
`CVE-2024-2567`	1.8	1.8	0.0021	2024-03-17