Cyber Resilience

CVE-2025-53240

High

Published: 22 January 2026

Published
22 January 2026
Modified
27 April 2026
KEV Added
—
Patch
—
CVSS Score v3.1 7.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
EPSS Score 0.0002 5.4th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-53240 is a high-severity Cross-site Scripting (CWE-79) vulnerability. Its CVSS base score is 7.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 5.4th 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 SI-10 (Information Input Validation) and SI-15 (Information Output Filtering).

Deeper analysis

CVE-2025-53240 is an Improper Neutralization of Input During Web Page Generation vulnerability, enabling Reflected Cross-site Scripting (XSS) as classified under CWE-79. It affects the adamlabs WordPress Photo Gallery plugin, known as photo-gallery-portfolio, in all versions from n/a through 1.1.0.

The vulnerability can be exploited by remote attackers over the network (AV:N) with low attack complexity (AC:L), requiring no privileges (PR:N) but user interaction (UI:R). Exploitation changes scope (S:C), resulting in low impacts to confidentiality, integrity, and availability (C:L/I:L/A:L), for an overall CVSS v3.1 score of 7.1. Attackers can inject malicious scripts that reflect off the server into a victim's browser.

Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/photo-gallery-portfolio/vulnerability/wordpress-wordpress-photo-gallery-plugin-1-1-0-cross-site-scripting-xss-vulnerability?_s_id=cve, which covers the XSS issue in the WordPress Photo Gallery plugin version 1.1.0.

EU & UK References

Vulnerability details

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in adamlabs WordPress Photo Gallery photo-gallery-portfolio allows Reflected XSS.This issue affects WordPress Photo Gallery: from n/a through <= 1.1.0.

CWE(s)
CWE-79

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 →
T1059.007 JavaScript Execution
Adversaries may abuse various implementations of JavaScript for execution.
attack.mitre.org →
Why these techniques?

Reflected XSS in public-facing WordPress plugin directly enables remote exploitation of a web application (T1190) and arbitrary JavaScript execution in victim browsers (T1059.007).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

CVEs Like This One

CVE-2026-3231Shared CWE-79
CVE-2025-23481Shared CWE-79
CVE-2025-69302Shared CWE-79
CVE-2025-23734Shared CWE-79
CVE-2025-23571Shared CWE-79
CVE-2025-65110Shared CWE-79
CVE-2026-24948Shared CWE-79
CVE-2025-27352Shared CWE-79
CVE-2025-30349Shared CWE-79
CVE-2026-3876Shared CWE-79

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Requires validation and sanitization of all inputs to the photo-gallery-portfolio plugin before web page generation, directly blocking the reflected XSS payload.

SI-15 Information Output Filtering good match
prevent

Enforces output filtering/encoding on responses from the plugin so that injected scripts are neutralized before reaching the victim's browser.

SI-3 Malicious Code Protection partial match
preventdetect

Deploys malicious-code detection mechanisms that can identify and block common XSS script patterns delivered via the reflected attack vector.

References