Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessCraft malicious script payload
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DeliveryDeliver via link or directory submission
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ExploitVictim views affected plugin page
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ExecutionScript executes in browser context
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ImpactHijack session or perform actions as victim
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
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. |
| Exploitation Conditions | Exploitation requires that the vulnerable Simple Link Directory plugin (<= 15.0.5) be installed and its affected front-end feature (submission, search, or listing rendering) be reachable by anonymous users, and it requires user interaction (UI:R) - a victim must open an attacker-crafted link or view attacker-supplied directory content for the payload to fire. No authentication is needed (PR:N), so any unauthenticated attacker can plant or deliver the payload. The primary limiting factors are the need to lure a victim into interacting and the client-side-only impact (Low C/I/A); the most valuable outcomes depend on a privileged user (e.g., an admin) being the one who triggers the script. The exact injectable parameter and whether the XSS is reflected or stored are not specified in the provided data. |
| Impact | The signals are moderate and largely consistent. CVSS is 7.1 (High) driven by network reach and no privileges (AV:N/AC:L/PR:N) plus a scope change (S:C), but the required user interaction (UI:R) and only Low confidentiality/integrity/availability impacts temper the real-world severity - this is a client-side script-execution flaw, not server-side code execution. No EPSS score was supplied in the input, so exploitation probability cannot be quantified here. KEV status is not present (not actively exploited) and no POC is referenced, so this is a credible but not urgent priority relative to actively exploited or wormable issues. One caveat: the CVSS vector claims network vector with no privileges, which fits an unauthenticated XSS, but the specific injection sink (reflected vs stored) is not stated in the source data and should be confirmed against the Patchstack advisory, since a stored variant would raise practical risk. |
| Exploit ScenarioDerived | An attacker crafts a URL or directory-submission payload containing malicious JavaScript that the Simple Link Directory plugin renders without sanitization, then distributes the link via email, social media, or a comment. When a victim (potentially a logged-in administrator) clicks or views the page, the script runs in their browser session and can steal cookies, forge admin actions, or redirect them. No public exploit code is identified at time of analysis, but the low attack complexity (AC:L) makes weaponization straightforward for anyone who identifies the injection point. |
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Alert meAnalysisAIv1 – Jul 02, 2026
Cross-site scripting in the Simple Link Directory WordPress plugin (versions 15.0.5 and earlier, by QuantumCloud) allows unauthenticated remote attackers to inject malicious script that executes in a victim's browser after they interact with a crafted link or page. The CVSS 3.1 vector (AV:N/PR:N/UI:R/S:C) indicates no authentication is required but a user must be lured into triggering the payload, and the changed scope reflects script execution crossing into the browser security context. There is no public exploit identified at time of analysis, and the flaw is not listed in CISA KEV.
RemediationAI
Upgrade the Simple Link Directory plugin to the vendor-fixed release above 15.0.5 as soon as it is confirmed available; No vendor-released patch version identified at time of analysis in the provided data, so consult the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/qc-simple-link-directory/vulnerability/wordpress-simple-link-directory-plugin-15-0-5-cross-site-scripting-xss-vulnerability) and the WordPress plugin repository for the exact patched version. Until a patch is applied, place a WAF or virtual patch (Patchstack offers one) in front of the site to filter XSS payloads on the plugin's endpoints - note WAF rules can produce false positives on legitimate rich input. As a stronger compensating control, disable or restrict public access to the plugin's front-end submission and search features (for example, require login before directory submissions or remove the affected shortcode/page), accepting the trade-off of reduced directory functionality; additionally deploy a strict Content-Security-Policy that blocks inline script to limit payload execution, understanding it may break other inline scripts on the site.
Affected VersionsENISA
Affected Packages
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.
Technical ContextAI · show details
The affected component is Simple Link Directory (CPE cpe:2.3:a:quantumcloud:simple_link_directory), a WordPress plugin from vendor QuantumCloud used to build categorized link/business directories on WordPress sites. The root cause is CWE-79 (Improper Neutralization of Input During Web Page Generation), meaning user-supplied input is reflected or stored into HTML output without adequate sanitization or output encoding. Because the attack is described as unauthenticated (PR:N), the injection point is reachable by anonymous users - typically a front-end directory submission form, search parameter, or listing field processed by the plugin. When the tainted data is rendered, an attacker-controlled <script> or event handler executes in the context of the served page.
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Unauthenticated network-reachable XSS (AV:N/PR:N) needing victim interaction (UI:R); script crosses into browser context (S:C) with limited client-side C/I/A impact.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
DescriptionCVE.org
Unauthenticated Cross Site Scripting (XSS) in Simple Link Directory <= 15.0.5 versions.
Executive ViewAI
The Simple Link Directory WordPress plugin (QuantumCloud, versions ≤15.0.5) contains an unauthenticated cross-site scripting vulnerability allowing attackers to inject malicious scripts that execute when users interact with compromised pages or links. This directly threatens customer data security and organizational reputation through potential credential theft, session hijacking, and data exfiltration. Immediate remediation is critical as no vendor patch is currently available.
No vendor-released patch identified at time of analysis. Interim mitigations: (1) Plugin deactivation if operationally feasible; (2) Web Application Firewall rules to block XSS payload patterns; (3) Content Security Policy (CSP) headers restricting inline script execution; (4) HTTP security headers (X-XSS-Protection, X-Content-Type-Options); (5) regular website scanning for exploitation indicators; (6) migration to maintained directory plugin alternatives.
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
More in Simple Link Directory
View allThe Simple Link Directory WordPress plugin before 7.7.2 does not validate and escape the post_id parameter before using
Stored cross-site scripting in the QuantumCloud Simple Link Directory WordPress plugin (versions through 9.0.4) allows l
Stored cross-site scripting in Simple Link Directory (WordPress plugin by QuantumCloud) through version 9.0.4 allows a l
EUVD-2026-41291
GHSA-9547-xvvm-938r
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB