What is CVE-2026-26997?

CVE-2026-26997 is a medium-severity vulnerability in Macwarrior Clipbucket-v5, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-02-27.

How severe is CVE-2026-26997?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Macwarrior Clipbucket-v5

CVE-2026-26997

ClipBucket v5 is an open source video sharing platform. Prior to version 5.5.3 #59, a normal authenticated user can store the XSS payload. The payload is triggered by administrator. Version 5.5.3 #59 fixes the issue.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (10.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Macwarrior Clipbucket-v5 — versions < 5.5.3 #59
Oxygenz Clipbucket

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-26997?: CVE-2026-26997 is a medium-severity vulnerability in Macwarrior Clipbucket-v5, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-02-27.
How severe is CVE-2026-26997?: Medium severity. CVSS v3 base score is 5.4 out of 10.