CVE-2026-1320

High

Published: 12 February 2026

Published

12 February 2026

Modified

15 April 2026

KEV Added

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Patch

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CVSS Score v3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

EPSS Score 0.0005 14.9th percentile

Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-1320 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Wordpress (inferred from references). Its CVSS base score is 7.2 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 14.9th 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-2026-1320 is a stored cross-site scripting (XSS) vulnerability in the Secure Copy Content Protection and Content Locking plugin for WordPress, affecting all versions up to and including 4.9.8. The flaw stems from insufficient input sanitization and output escaping when handling the 'X-Forwarded-For' HTTP header, allowing malicious payloads to be stored and persist on affected pages. It has been assigned CWE-79 and a CVSS v3.1 base score of 7.2 (AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N), reflecting high severity due to its network accessibility, low complexity, lack of required privileges or user interaction, and changed scope.

Unauthenticated attackers can exploit this vulnerability remotely by sending crafted HTTP requests with malicious scripts in the 'X-Forwarded-For' header. Once injected, the arbitrary web scripts are stored in pages and execute in users' browsers whenever those pages are accessed, potentially leading to session hijacking, data theft, or further site compromise for any visiting user, including administrators.

Advisories reference a patch in the plugin's WordPress trac repository at changeset 3449531, which addresses the sanitization issue. Additional details on the vulnerability, including exploitation vectors, are available from Wordfence threat intelligence. Security practitioners should urge site owners to update the plugin beyond version 4.9.8 and review logs for suspicious 'X-Forwarded-For' manipulations.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2026-7044

Vulnerability details

The Secure Copy Content Protection and Content Locking plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'X-Forwarded-For' HTTP header in all versions up to, and including, 4.9.8 due to insufficient input sanitization and output escaping. This makes…

it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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 →

T1189 Drive-by Compromise Initial Access

Adversaries may gain access to a system through a user visiting a website over the normal course of browsing.

attack.mitre.org →

T1539 Steal Web Session Cookie Credential Access

An adversary may steal web application or service session cookies and use them to gain access to web applications or Internet services as an authenticated user without needing credentials.

attack.mitre.org →

Why these techniques?

Stored XSS in public-facing WordPress plugin directly enables remote exploitation via T1190; resulting arbitrary script execution in visitor browsers facilitates drive-by compromise (T1189) and web session cookie theft (T1539).

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