Security Resilience

CVE-2026-57803

Published
13 July 2026
Modified
11 August 2026
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0051 42th percentile
Risk Priority 56 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2026-57803 is a high-severity PHP Remote File Inclusion (CWE-98) vulnerability. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 42th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in Select-Themes Struktur Core allows PHP Local File Inclusion. This issue affects Struktur Core: from n/a before 2.7.

CWE(s)
CWE-98

Related Threats

MITRE ATT&CK Enterprise Techniques

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 →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-39399Shared CWE-98
CVE-2025-54015Shared CWE-98
CVE-2025-46474Shared CWE-98
CVE-2025-30845Shared CWE-98
CVE-2025-58215Shared CWE-98
CVE-2026-65477Shared CWE-98
CVE-2025-23938Shared CWE-98
CVE-2025-26735Shared CWE-98
CVE-2025-62753Shared CWE-98
CVE-2025-13886Shared CWE-98

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and static analysis can discover missing filename restrictions before deployment.

SI-10 Information Input Validation good match

Validating all inputs before they reach include/require statements directly stops untrusted filenames from being used.

AC-3 Access Enforcement partial match

Enforcing access authorizations on resources limits what an included file can reach even if a bad name is supplied.

AC-4 Information Flow Enforcement partial match

Information-flow rules can block the loading of external or unauthorized files into the PHP process.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
blocks

Secure SDLC practices such as input validation and allow-listing of include paths directly prevent the weakness.

PR.PS-01 partial match
blocks

Hardened runtime configuration (e.g., allow_url_include=off) directly blocks RFI even if code is flawed.

PR.PS-05 partial match
blocks

Execution restrictions can prevent the remote payload from running, while eliminating the weakness reduces the need for such controls.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can detect RFI but does not prevent the weakness by itself.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly require whitelisting and sanitization of filenames used in include/require statements.

References