CVE-2026-21875 is a critical Blind SQL Injection vulnerability affecting ClipBucket v5, specifically versions 5.5.2-#187 and below. An unauthenticated attacker can exploit this by injecting malicious SQL through the 'obj_id' parameter in the add comment section's POST request to /actions/ajax.php. This vulnerability has a CVSS score of 9.8 (Critical) due to its network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. There is no known fix at the time of publication, and while there is no evidence of active exploitation or public exploit code, the vulnerability has garnered significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.3, < 5.5.2-191CPE matchmatch criteria | cpe:2.3:a:oxygenz:clipbucket:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.