What’s Vulnerable › Vulnerabilities

CVE-2026-77928: ClipBucket < 5.5.3-#182 Blind SQL Injection via Private Message Deletion Endpoint

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-18 · updated 2026-09-22
• Weakness: CWE-89

Description

ClipBucket v5 before 5.5.3-#182 contains a blind SQL injection vulnerability that allows authenticated users to extract arbitrary database contents by submitting the msg_id parameter as an array to bypass the clean_requests() sanitization function in ClipBucket.class.php. Attackers can pass unsanitized array elements through the deletion handler in private_message.php into cb_pm::delete_msg(), which interpolates the unescaped message ID directly into a SQL query string, enabling time-based blind SQL injection to retrieve all user credential hashes and email addresses.

Affected products

• MacWarrior clipbucket-v5: before 5.5.3-#182 — fixed in 5.5.3-#182

How to fix

Upgrade to a fixed version: MacWarrior clipbucket-v5 5.5.3-#182. Check the vendor advisory for mitigations.

References

• https://github.com/MacWarrior/clipbucket-v5/commit/85907c5fd1205ccae98c214bed4b3421c632f90c
• https://github.com/MacWarrior/clipbucket-v5/releases/tag/5.5.3-%23182
• https://www.vulncheck.com/advisories/clipbucket-blind-sql-injection-via-private-message-deletion-endpoint

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