CVE-2026-21875
criticalpriority · track · 1EPSS 0.017 · 78 %ileEUUSEPSS · scored 2026-10-27
ClipBucket v5 is an open source video sharing platform. Versions 5.5.2-#187 and below allow an attacker to perform Blind SQL Injection through the add comment section within a channel. When adding a comment within a channel, there is a POST request to the /actions/ajax.php endpoint. The obj_id parameter within the POST request to /actions/ajax.php is then used within the user_exists function of the upload/includes/classes/user.class. php file as the $id parameter. It is then used within the count function of the upload/includes/classes/db.class. php file. The $id parameter is concatenated into the query without validation or sanitization, and a user-supplied input like 1' or 1=1-- - can be used to trigger the injection. This issue does not have a fix at the time of publication.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
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affected products (2)
Products and version ranges known to be affected.
also known as (2)
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sources
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references (5)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2026-21875cnnvd
- https://clipbucket.com/Patchcnnvd
- https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-crpv-fmc4-j392cnnvd
- https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-crpv-fmc4-j392enisa_euvd
- https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-crpv-fmc4-j392ExploitVendor Advisorynvd
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