What is the CVSS score of CVE-2026-42653?

CVE-2026-42653 has a CVSS 3.1 base score of 7.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L. EPSS exploitation probability: 0.0%.

Which versions of SliceWP are affected by CVE-2026-42653?

SliceWP, a WordPress affiliate-marketing plugin running on your sites, contains a stored code-injection vulnerability that allows attackers to compromise user sessions and steal sensitive data when…

How to fix or mitigate CVE-2026-42653?

24 hours: Inventory all WordPress instances running SliceWP and confirm version numbers; search plugin-managed content for suspicious JavaScript patterns; assess whether plugin functionality is business-critical or can be disabled immediately. 7 days: Deploy Web Application Firewall rules to detect and block XSS payloads in SliceWP input fields; implement Content Security Policy headers; restrict plugin administration to roles protected by multi-factor authentication. 30 days: Identify and deploy a replacement affiliate-marketing solution; migrate away from SliceWP; conduct full WordPress security audit including all active plugins.

SliceWP CVE-2026-42653

EUVD-2026-36361 HIGH

Cross-site Scripting (XSS) (CWE-79)

2026-06-11 Patchstack

GHSA-36wv-jqc8-m47v

XSS Slicewp

7.1

CVSS 3.1 · Vendor: Patchstack

Severity by source

Vendor (Patchstack) PRIMARY

7.1 HIGH

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

vuln.today AI

5.4 MEDIUM

Stored XSS in a WordPress plugin typically requires at least an affiliate/subscriber account to submit content (PR:L), needs a victim to load the page (UI:R), changes scope to the browser (S:C), and has no direct availability impact.

3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

4.0 AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

Analysis Generated

Jun 11, 2026 - 21:51 vuln.today

DescriptionCVE.org

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in iova.Mihai SliceWP allows Stored XSS.

This issue affects SliceWP: from n/a through 1.2.6.

AnalysisAI

Stored cross-site scripting in the SliceWP WordPress affiliate-marketing plugin (all versions up to and including 1.2.6) lets remote attackers persist malicious JavaScript that executes in the browsers of users who later view the affected page. Patchstack-reported issue with no public exploit identified at time of analysis; CVSS 7.1 reflects the scope-changing impact when an admin or another user is lured into rendering the injected payload. Affects WordPress sites running the iova.Mihai SliceWP plugin in default configurations exposed to attacker-supplied input.

Technical ContextAI

SliceWP is a WordPress plugin by iova.Mihai (CPE cpe:2.3:a:iova.mihai:slicewp) that adds affiliate-program functionality (registration, referral tracking, commissions) to WordPress sites. The root cause is CWE-79, Improper Neutralization of Input During Web Page Generation, meaning one or more plugin code paths render attacker-controlled values into HTML without proper output encoding or input sanitization. Because the XSS is stored, the malicious payload is persisted server-side (in the WordPress database) and re-rendered to every subsequent viewer of the affected page, rather than requiring a crafted link as with reflected XSS.

RemediationAI

No vendor-released patch version is identified in the supplied intelligence; the Patchstack advisory only documents the vulnerable range as 'n/a through 1.2.6', so administrators should monitor the SliceWP plugin page on wordpress.org and the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/slicewp/vulnerability/wordpress-slicewp-plugin-1-2-6-cross-site-scripting-xss-vulnerability) for a release newer than 1.2.6 and upgrade as soon as it is published. Until then, mitigate by deploying a WordPress WAF rule (Patchstack, Wordfence) that virtually patches this CVE, restricting which roles can submit content to the SliceWP affiliate forms/settings, and temporarily deactivating the SliceWP plugin if the affiliate program is non-essential - deactivation will disable affiliate signup and referral tracking. A site-wide Content Security Policy that forbids inline script can blunt payload execution but typically breaks WordPress admin UI and many other plugins, so test before rolling out.