What is CVE-2024-51509?

CVE-2024-51509 is a medium-severity vulnerability in Tiki, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2024-10-28.

How severe is CVE-2024-51509?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Tiki

CVE-2024-51509

Tiki through 27.0 allows users who have certain permissions to insert a "Modules" (aka tiki-admin_modules.php) stored XSS payload in the Name.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2024-10-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (11.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Tiki

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security.tiki.org/Disclose-a-Vulnerability (Product)
github.com/r0ck3t1973/xss_payload/issues/10 (Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2024-51509?: CVE-2024-51509 is a medium-severity vulnerability in Tiki, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2024-10-28.
How severe is CVE-2024-51509?: Medium severity. CVSS v3 base score is 4.8 out of 10.