EUVD-2026-75237
GHSA-6237-95m6-mmw4
Severity by source
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Network-accessible WordPress handler requires administrator authentication (PR:H); traversal yields high confidentiality impact via arbitrary file read, with no integrity or availability effect.
Primary rating from Vendor (Wordfence).
CVSS VectorNVD
Lifecycle Timeline
2DescriptionNVD
The WP BackItUp Community Edition plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 2.1.0 via the 'backup_file' parameter parameter. This makes it possible for authenticated attackers, with administrator-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information. The basename() normalization present in the handler only executes when the traversed target path does not exist, providing no protection against reads of existing files.
AnalysisAI
Directory traversal in WP BackItUp Community Edition (WordPress plugin) ≤2.1.0 allows authenticated administrators to read the contents of arbitrary existing files on the server via the backup_file parameter in the download handler. The handler applies basename() normalization only when the traversal target path does not exist - meaning any real file, including wp-config.php or OS credential files, is returned without sanitization. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid WordPress account with administrator-level privileges or higher (corresponding to CVSS PR:H). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.9 score accurately reflects the constrained attack surface imposed by the PR:H requirement - an administrator credential is the entry prerequisite, which eliminates unauthenticated and low-privilege exploitation paths. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch identified at time of analysis - the Wordfence advisory (https://www.wordfence.com/threat-intel/vulnerabilities/id/50272c8a-2e23-490d-8865-68ae49228895?source=cve) and the WordPress Trac browser references point only to the vulnerable 2.0.0 and 2.1.0 plugin versions with no fix tag available. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
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External POC / Exploit Code
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