CVE-2026-77928

high

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.

References

https://www.vulncheck.com/advisories/clipbucket-blind-sql-injection-via-private-message-deletion-endpoint

https://github.com/MacWarrior/clipbucket-v5/releases/tag/5.5.3-%23182

https://github.com/MacWarrior/clipbucket-v5/commit/85907c5fd1205ccae98c214bed4b3421c632f90c

Details

Source: Mitre, NVD

Published: 2026-09-18

Updated: 2026-09-18

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Severity: Medium

CVSS v4

Base Score: 7.1

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00255