What is the CVSS score of EUVD-2026-37559?

EUVD-2026-37559 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: 0.2%.

Is there a public PoC exploit available for EUVD-2026-37559?

Yes, a public proof-of-concept exploit is available for EUVD-2026-37559. Prioritise patching immediately. EPSS: 0.2%.

Taskbuilder EUVD-2026-37559

Q: Which versions of Taskbuilder are affected by EUVD-2026-37559?

The Taskbuilder WordPress plugin (versions before 5.0.8) contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious JavaScript into users'…. A patch is available.

Q: How to fix or mitigate EUVD-2026-37559?

Within 24 hours, audit all WordPress installations using Taskbuilder plugin to identify affected versions. Within 7 days, update all instances to Taskbuilder version 5.0.8 or later to apply the vendor-released patch. Within 30 days, review authentication and access logs on affected systems for exploitation attempts, audit user sessions for unauthorized activity, and validate patch deployment across the entire WordPress environment.

| CVE-2026-9570 HIGH

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

2026-06-17 WPScan

WordPress XSS Taskbuilder Unknown

7.1

CVSS 3.1 · CISA-ADP

View

Vulnerability Assessment

Weakness

CWE

CWE-79

MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 22, 2026

Reflected cross-site scripting in the Taskbuilder WordPress plugin before 5.0.8 lets an unauthenticated attacker inject arbitrary JavaScript by tricking a logged-in user into visiting a crafted URL. The plugin echoes an unsanitised URL parameter directly into inline JavaScript on any frontend page that renders one of its shortcodes, so the payload executes in the victim's authenticated browser session. Publicly available exploit code exists (WPScan), though EPSS remains low (0.18%) and the flaw is not in CISA KEV.

Affected VersionsENISA

Taskbuilder 0 <5.0.8

Affected Packages

euvd taskbuilder fix: 5.0.8

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

CISA-ADP PRIMARY 7.1 HIGH

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

Primary rating from CISA-ADP · only source for this CVE.

CVSS VectorCISA-ADP

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

Patch available

Jun 17, 2026 - 09:01 EUVD

CVE Published

Jun 17, 2026 - 06:00 cve.org

UNKNOWN (no severity yet)

CVE Published

Jun 17, 2026 - 06:00 cve.org

HIGH 7.1

DescriptionCVE.org

The Taskbuilder WordPress plugin before 5.0.8 does not properly sanitise a URL parameter before echoing it into inline JavaScript on a frontend page containing one of its shortcodes, leading to a Reflected Cross-Site Scripting vulnerability that can be triggered against any logged-in user.

Executive ViewAI

Why It Matters

The Taskbuilder WordPress plugin (versions before 5.0.8) contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious JavaScript into users' authenticated browser sessions. Affected WordPress installations expose user accounts to credential theft and unauthorized actions when users click malicious links. Publicly available exploit code increases attack feasibility despite low current exploitation rates.

Recommended Action

Within 24 hours, audit all WordPress installations using Taskbuilder plugin to identify affected versions. Within 7 days, update all instances to Taskbuilder version 5.0.8 or later to apply the vendor-released patch. Within 30 days, review authentication and access logs on affected systems for exploitation attempts, audit user sessions for unauthorized activity, and validate patch deployment across the entire WordPress environment.

Business Impact: High

Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score

0.2%

Top 92% exploitable

Exploit

POC

Public exploit code exists

Data Quality

6 sources

Confidence: High

EUVD

NVD

CVE.org

EPSS

Vulnrichment

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC Yes

EPSS 0.2%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.