CVE intelligence and bounded remediation
CVE-2020-35945 — An issue was discovered in the Divi Builder plugin, Divi theme, and Divi Extra theme before 4.5.3 for WordPress
Critical
CVSS 9.9
An issue was discovered in the Divi Builder plugin, Divi theme, and Divi Extra theme before 4.5.3 for WordPress. Authenticated attackers, with contributor-level or above capabilities, can upload arbitrary files, including .php files. This occurs because the check for file extensions is on the client side.
- Severity
- Critical
- CVSS
- 9.9 (3.1)
- Published
- 2021-01-01
- CISA KEV
- Not currently listed
- Ecosystem
- php/wordpress
- Weaknesses
- CWE-434
Affected products
- elegantthemes / divi
- elegantthemes / divi_builder
- elegantthemes / extra
Matched remediation archetype
Path traversal, unsafe upload, and file handling
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Trace untrusted filenames, archive entries, URLs, and path segments into read, write, include, extraction, and upload operations.
- Identify filesystem roots, mount permissions, symbolic-link behavior, archive handling, and whether uploaded content is web-accessible or executable.
- Review canonicalization and containment checks across supported operating systems and storage backends.
Remediate safely
- Generate server-side storage identifiers and resolve paths beneath a fixed root using filesystem-aware containment checks.
- Reject absolute, parent-relative, alternate-separator, device, link, and archive entries that escape the intended root.
- Store uploads outside executable or served paths, validate type and size, and use private atomic temporary files.
Authoritative sources
Complete CVE record and remediation plan
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