What is CVE-2026-78293?

CVE-2026-78293 is a high-severity vulnerability in Axew3 Wp W3all phpBB, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-08-27.

How severe is CVE-2026-78293?

High severity. CVSS v3 base score is 7.1 out of 10.

XSS in Axew3 Wp W3all phpBB

CVE-2026-78293

Unauthenticated Cross Site Scripting (XSS) in WP w3all phpBB <= 3.0.6 versions.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (14.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.

Affected products

Axew3 Wp W3all Phpbb

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-78293?: CVE-2026-78293 is a high-severity vulnerability in Axew3 Wp W3all phpBB, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-08-27.
How severe is CVE-2026-78293?: High severity. CVSS v3 base score is 7.1 out of 10.