What is CVE-2026-67617?

CVE-2026-67617 is a medium-severity vulnerability in Microweber, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2026-08-03.

How severe is CVE-2026-67617?

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

XSS in Microweber

CVE-2026-67617

Microweber CMS through 2.0.20 contains a stored cross-site scripting vulnerability in the content tagging system that allows admin-authenticated attackers to inject arbitrary JavaScript by submitting malicious payloads via the tag_names pa…

Vulnerability class: XSS (Cross-Site Scripting)

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.

Affected products

Microweber — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (technical-description, exploit)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-67617?: CVE-2026-67617 is a medium-severity vulnerability in Microweber, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2026-08-03.
How severe is CVE-2026-67617?: Medium severity. CVSS v3 base score is 4.8 out of 10.