CVE-2025-26756
Published: 22 February 2025
Summary
CVE-2025-26756 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 22.6th 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-15 (Information Output Filtering) and SI-2 (Flaw Remediation).
Deeper analysis
CVE-2025-26756 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Stored Cross-site Scripting (XSS) under CWE-79, in the WordPress plugin Magic the Gathering Card Tooltips by grimdonkey (magic-the-gathering-card-tooltips). It affects all versions of the plugin from n/a through 3.5.0 inclusive. The issue was published on 2025-02-22 and carries a CVSS v3.1 base score of 7.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L).
Unauthenticated attackers accessible over the network can exploit this vulnerability with low attack complexity, though it requires user interaction such as viewing a maliciously crafted page. Exploitation enables storage of malicious scripts that execute in the browser context of affected users, potentially compromising low levels of confidentiality, integrity, and availability while changing scope due to the cross-origin effects of XSS.
The Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/magic-the-gathering-card-tooltips/vulnerability/wordpress-magic-the-gathering-card-tooltips-plugin-3-5-0-cross-site-scripting-xss-vulnerability?_s_id=cve details the Stored XSS vulnerability specifically in Magic the Gathering Card Tooltips plugin version 3.5.0 for WordPress. Security practitioners should review this reference for recommended mitigations.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-4428
Vulnerability details
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in grimdonkey Magic the Gathering Card Tooltips magic-the-gathering-card-tooltips allows Stored XSS.This issue affects Magic the Gathering Card Tooltips: from n/a through <= 3.5.0.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The stored XSS vulnerability in a public-facing WordPress plugin allows unauthenticated network attackers to inject and store malicious JavaScript that executes in victims' browsers upon page view, directly enabling exploitation of public-facing applications (T1190) and JavaScript-based command/script execution (T1059.007).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly filters information prior to output to web pages to prevent cross-site scripting attacks, comprehensively addressing the Stored XSS vulnerability in the plugin.
Validates information inputs from external sources, mitigating improper neutralization that allows storage of malicious scripts.
Mandates timely identification, reporting, and correction of system flaws, directly enabling patching of the specific Stored XSS vulnerability in the WordPress plugin.