What is CVE-2026-27991?

CVE-2026-27991 is a high-severity vulnerability in Themerex Avventure, classified under PHP Remote File Inclusion. CVSS score: 8.1/10. Published 2026-03-05.

How severe is CVE-2026-27991?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Themerex Avventure

CVE-2026-27991

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in ThemeREX Avventure avventure allows PHP Local File Inclusion.This issue affects Avventure: from n/a through <= 1.1.12.

EPSS: 0.004 (33.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Themerex Avventure — versions 0

Weakness classification (CWE)

CWE-98 — PHP Remote File Inclusion

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-27991?: CVE-2026-27991 is a high-severity vulnerability in Themerex Avventure, classified under PHP Remote File Inclusion. CVSS score: 8.1/10. Published 2026-03-05.
How severe is CVE-2026-27991?: High severity. CVSS v3 base score is 8.1 out of 10.