What is CVE-2026-105862?

CVE-2026-105862 is a high-severity vulnerability in Payloadcms Payload, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-10-06.

How severe is CVE-2026-105862?

High severity. CVSS v3 base score is 8.7 out of 10.

XSS in Payloadcms Payload

CVE-2026-105862

Payload is a free and open source headless content management system. In versions before 3.90.0 and canary versions before 4.0.0-canary.34, a collection that allows downloadable SVG uploads can store a malicious SVG that bypasses sanitization and executes attacker-controlled JavaScript when a user downloads and opens the SVG. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-10-06 · last modified 2026-10-06.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Payloadcms Payload — versions < 3.90.0, >= 4.0.0-canary.0, < 4.0.0-canary.34

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-105862?: CVE-2026-105862 is a high-severity vulnerability in Payloadcms Payload, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-10-06.
How severe is CVE-2026-105862?: High severity. CVSS v3 base score is 8.7 out of 10.