CWE · MITRE source
CWE-530Exposure of Backup File to an Unauthorized Control Sphere
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: 16 October 2026 14:24 UTC
Control responseHuman-reviewed
Answering this weakness across the control lifecycle, from our framework cross-walks.
NIST 800-53 r5 controls PROPOSED for this weakness (0)AI-assisted
These are model PROPOSALS, not graded mappings. They come
from controls_to_cwe_proposals, which carries no grade field at
all; across the CWE pages 1,540 of 1,722 such associations (89%) have never
been graded by anything. The heading said “address” until
2026-09-29, which asserted a relationship the data does not carry.
Graded cross-walks are on the framework map, not here.
| 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 | 0.0092 | 2025-12-10 |
CVE-2024-12330 UPD | 5.9 | 7.5 | 0.0052 | 2025-01-09 |
CVE-2024-56462 UPD | 5.4 | 7.2 | 0.0046 | 2026-05-27 |
CVE-2025-3773 UPD | 4.1 | 5.5 | 0.0014 | 2025-06-26 |
CVE-2023-5297 UPD | 3.4 | 3.7 | 0.0083 | 2023-09-29 |
CVE-2024-3124 UPD | 2.3 | 2.4 | 0.0028 | 2024-04-01 |
CVE-2024-3128 UPD | 2.3 | 2.4 | 0.0027 | 2024-04-01 |
CVE-2024-3430 UPD | 2.2 | 2.4 | 0.0022 | 2024-04-07 |
CVE-2026-2974 UPD | 2.2 | 2.5 | 0.0014 | 2026-02-23 |
CVE-2026-13514 | 2.2 | 2.4 | 0.0018 | 2026-06-29 |
CVE-2024-2364 UPD | 1.9 | 1.8 | 0.0033 | 2024-03-10 |
CVE-2024-2567 UPD | 1.8 | 1.8 | 0.0021 | 2024-03-17 |