Cyber Resilience

CVE-2026-22378

High

Published: 20 February 2026

Published
20 February 2026
Modified
15 April 2026
KEV Added
—
Patch
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CVSS Score v3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0033 25.1th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-22378 is a high-severity PHP Remote File Inclusion (CWE-98) vulnerability. Its CVSS base score is 8.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 25.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 RA-5 (Vulnerability Monitoring and Scanning) and SI-10 (Information Input Validation).

Deeper analysis

CVE-2026-22378 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, classified as PHP Remote File Inclusion but enabling PHP Local File Inclusion, in the Blabber WordPress theme developed by AncoraThemes. The issue affects Blabber versions from n/a through 1.7.0 and is associated with CWE-98. Published on 2026-02-20, it carries a CVSS v3.1 base score of 8.1 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).

Unauthenticated remote attackers can exploit this vulnerability over the network without requiring user interaction, though exploitation involves high attack complexity. Successful attacks can result in high impacts to confidentiality, integrity, and availability, potentially allowing attackers to include and execute arbitrary local files on the server.

Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Theme/blabber/vulnerability/wordpress-blabber-theme-1-7-0-local-file-inclusion-vulnerability?_s_id=cve.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability details

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in AncoraThemes Blabber blabber allows PHP Local File Inclusion.This issue affects Blabber: from n/a through <= 1.7.0.

CWE(s)
CWE-98

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

CVE-2026-22378 is a local file inclusion vulnerability in a public-facing WordPress theme, exploitable over the network without authentication, directly mapping to Exploit Public-Facing Application (T1190).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2025-58923Shared CWE-98
CVE-2025-69057Shared CWE-98
CVE-2024-54263Shared CWE-98
CVE-2026-28035Shared CWE-98
CVE-2026-28024Shared CWE-98
CVE-2025-67525Shared CWE-98
CVE-2025-22707Shared CWE-98
CVE-2025-69375Shared CWE-98
CVE-2026-22443Shared CWE-98
CVE-2025-53198Shared CWE-98

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

SI-10 requires validation of information inputs, directly preventing exploitation of the improper filename control in PHP include/require statements that enables local file inclusion.

SI-2 Flaw Remediation good match
prevent

SI-2 mandates timely flaw remediation, addressing the specific LFI vulnerability in Blabber theme versions through n/a to <=1.7.0 by applying patches.

RA-5 Vulnerability Monitoring and Scanning good match
detect

RA-5 requires vulnerability scanning that would identify this PHP LFI vulnerability in the Blabber WordPress theme prior to exploitation.

References