Blocksy Companion <= 2.1.46 - Unauthenticated Arbitrary File Upload via 'blc-review-images[]' Parameter
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| creativethemeshq | Blocksy Companion | unaffected |
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| Creativethemes | Blocksy Companion |
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| Wordpress-extensions | Blocksy Companion |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: 1.1% (1.067% probability within 30 days)
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Creativethemes
Creativethemes blocksy Companion Wordpress-extensions Wordpress-extensions blocksy Companion |
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| Vendors & Products |
Creativethemes
Creativethemes blocksy Companion Wordpress-extensions Wordpress-extensions blocksy Companion |
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| Metrics |
ssvc
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| Description | The Blocksy Companion plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 2.1.46 via the save_attachments function. This is due to the Custom Fonts extension registering a wp_check_filetype_and_ext filter that approves any filename containing .woff2 or .ttf as a substring via strpos() rather than validating that those strings appear as the final extension via PATHINFO_EXTENSION — allowing double-extension filenames such as shell.woff2.php to pass MIME validation and be handled as permitted font files. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible. This vulnerability is only exploitable when the premium version of the plugin (blocksy-companion-pro) is installed with both the WooCommerce Extra (Advanced Reviews) and Custom Fonts extensions active; the free blocksy-companion plugin does not contain the vulnerable code paths. | |
| Title | Blocksy Companion <= 2.1.46 - Unauthenticated Arbitrary File Upload via 'blc-review-images[]' Parameter | |
| Weaknesses | CWE-434 | |
| References |
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| Metrics |
cvssV3_1
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