What is CVE-2026-33402?

CVE-2026-33402 is a medium-severity vulnerability in Sakailms Sakai, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-03-26.

How severe is CVE-2026-33402?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Sakailms Sakai

CVE-2026-33402

Sakai is a Collaboration and Learning Environment (CLE). In versions 23.0 through 23.4 and 25.0 through 25.1, group titles and description can contain cross-site scripting scripts. The patch is included in releases 25.2 and 23.5. As a work…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (9.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Sakailms Sakai
Sakaiproject Sakai — versions >= 23.0, < 23.5, >= 25.0, < 25.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (Permissions Required, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-33402?: CVE-2026-33402 is a medium-severity vulnerability in Sakailms Sakai, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-03-26.
How severe is CVE-2026-33402?: Medium severity. CVSS v3 base score is 6.1 out of 10.