CVE Explorer
CVE-2026-15158
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 MIM
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"Blocksy Companion","vendor":"creativethemeshq","versions":[{"lessThanOrEqual":"2.1.46","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:dde9e4c23dd482c06802d2c77d6572b7cc630d1bc4ede57130b624415c0530f1 · sha256:c4c37e1cf68c3bf3… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:dde9e4c23dd482c06802d2c77d6572b7cc630d1bc4ede57130b624415c0530f1 · sha256:c4c37e1cf68c3bf3… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-434","description":"CWE-434 Unrestricted Upload of File with Dangerous Type","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:dde9e4c23dd482c06802d2c77d6572b7cc630d1bc4ede57130b624415c0530f1 · sha256:c4c37e1cf68c3bf3… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"url":"https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.46/framework/premium/extensions/custom-fonts/extension.php#L137"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:dde9e4c23dd482c06802d2c77d6572b7cc630d1bc4ede57130b624415c0530f1 · sha256:c4c37e1cf68c3bf3… · /containers/cna/references/2
{"url":"https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.46/framework/premium/extensions/woocommerce-extra/features/advanced-reviews/feature.php#L811"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:dde9e4c23dd482c06802d2c77d6572b7cc630d1bc4ede57130b624415c0530f1 · sha256:c4c37e1cf68c3bf3… · /containers/cna/references/1
{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/2df449b4-3f3b-4afc-b391-8d8d11710c07?source=cve"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:dde9e4c23dd482c06802d2c77d6572b7cc630d1bc4ede57130b624415c0530f1 · sha256:c4c37e1cf68c3bf3… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.