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Media Library Assistant CVE-2026-61963

| EUVDEUVD-2026-53958 HIGH
Cross-site Scripting (XSS) (CWE-79)
2026-08-06 Patchstack GHSA-wp9v-cvgf-5842
7.1
CVSS 3.1 · Vendor: Patchstack
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Identify WordPress site running Media Library Assistant <= 3.38
  2. Delivery
    Craft URL or input with XSS payload targeting vulnerable plugin parameter
  3. Exploit
    Deliver crafted link to authenticated WordPress user via phishing or social engineering
  4. Execution
    Victim clicks link and loads page in authenticated session
  5. Persist
    Injected script executes in victim's browser across scope boundary
  6. Impact
    Attacker exfiltrates session token or performs 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

The target WordPress site must have the Media Library Assistant plugin installed and active in a version at or below 3.38. The CVSS vector PR:N confirms no attacker authentication is required. However, UI:R is a hard prerequisite - a victim user (ideally an authenticated WordPress user to maximize impact, given the scope change) must load or interact with attacker-controlled content that triggers the vulnerable rendering path. Exploitation is limited by this required victim interaction and by the need for the specific plugin to be installed; it does not affect WordPress sites that do not use this plugin. There is no indication that a specific non-default plugin configuration is required - the vulnerability appears present in the default installation state.

Impact

The CVSS base score of 7.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L) reflects meaningful risk: the attack is network-reachable, requires no authentication, and has low complexity, meaning any internet-facing WordPress site running the plugin is a candidate target. The sole friction is the required user interaction (UI:R), meaning a victim must load or interact with a crafted page or link. EPSS data was not provided in the available intelligence, so exploitation probability cannot be quantified numerically. No CISA KEV listing is present, and no POC is confirmed, indicating this is not actively weaponized at scale as of analysis. The A:L metric in the vendor-assigned vector is arguably generous for pure XSS - availability impact from script injection is uncommon without additional chaining - suggesting the NVD or Patchstack scoring may be conservative. Real-world risk is moderate: unauthenticated XSS against WordPress plugins is a well-understood attack class frequently exploited opportunistically by automated scanners, but impact is constrained by the need for victim interaction.

Exploit ScenarioDerived

An attacker crafts a URL or form input containing a malicious JavaScript payload targeting a vulnerable parameter in the Media Library Assistant plugin and delivers it to a logged-in WordPress user - such as an editor or administrator - via phishing email or a forum post. When the victim loads the crafted URL while authenticated to WordPress, the injected script executes in their browser session, potentially exfiltrating session cookies, creating rogue admin accounts, or redirecting the victim to a phishing site. No confirmed POC exists at time of analysis, but this XSS class is trivially exploitable by anyone familiar with WordPress plugin attack patterns.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Aug 06, 2026

Unauthenticated Cross-Site Scripting (XSS) in the Media Library Assistant WordPress plugin affects all versions up to and including 3.38, allowing remote attackers without any authentication to inject malicious scripts into pages viewed by victims. The scope change indicated by the CVSS vector (S:C) suggests the injected script executes in a security context beyond the plugin itself, potentially enabling session hijacking, credential theft, or malicious redirects against authenticated WordPress users including administrators. No public exploit code or active exploitation has been confirmed at time of analysis, but the unauthenticated nature and low attack complexity elevate practical risk on exposed WordPress installations.

RemediationAI

The primary remediation is to update the Media Library Assistant plugin to a version above 3.38 via the WordPress plugin dashboard or by downloading directly from the WordPress.org plugin repository. The Patchstack advisory at https://patchstack.com/database/wordpress/plugin/media-library-assistant/vulnerability/wordpress-media-library-assistant-plugin-3-38-cross-site-scripting-xss-vulnerability should be consulted for the confirmed fixed version, as the exact patched release number is not independently confirmed in the available data. If an immediate update is not possible, a compensating control is to restrict access to any plugin pages or endpoints that accept and reflect user-supplied input using a WAF rule targeting script injection patterns, though this carries a risk of false positives affecting legitimate media library operations. Additionally, ensuring WordPress admin accounts use separate session cookies with HttpOnly and Secure flags limits the blast radius of any successful XSS exploitation.

Affected VersionsENISA

Media Library Assistant n/a ≤3.38

Affected Packages

euvd media_library_assistant no fix

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

Media Library Assistant is a WordPress plugin developed by David Lingren (CPE: cpe:2.3:a:david_lingren:media_library_assistant:*:*:*:*:*:*:*:*) that extends WordPress media management capabilities. The vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation), the canonical root cause for reflected or stored XSS - meaning the plugin fails to properly sanitize or encode attacker-controlled input before rendering it in the browser DOM. The CVSS scope change (S:C) is consistent with XSS in a WordPress context where a script injected into the plugin's output can access cookies, tokens, or perform actions in the broader WordPress admin session, crossing the plugin's trust boundary into the WordPress core security context.

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  • Exploit and PoC references, threat intelligence from 22 sources

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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 6.1 MEDIUM

XSS with scope change and no auth required; availability removed as script injection does not cause measurable service disruption.

3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low

DescriptionCVE.org

Unauthenticated Cross Site Scripting (XSS) in Media LIbrary Assistant <= 3.38 versions.

Executive ViewAI

Why It Matters

The Media Library Assistant WordPress plugin (versions ≤3.38) contains an unauthenticated cross-site scripting vulnerability enabling attackers to inject malicious scripts viewed by site visitors and administrators without authentication. Successful exploitation could lead to session hijacking, credential theft, or unauthorized redirects targeting WordPress administrators and users. Organizations running this plugin face immediate credential compromise risk with no vendor patch currently available.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations include: uninstall or disable the plugin if functionally replaceable by alternatives; implement network-level or WAF-based access controls restricting plugin functionality; enforce strict Content Security Policy (CSP) headers to prevent malicious script execution; increase monitoring and alerting on WordPress user sessions for anomalous activity; restrict administrator panel access to VPN or specific IP ranges; conduct urgent code review of any custom integrations with the Media Library Assistant component.

Threat Intelligence Overview

EPSS Score
0.2%
Top 92% exploitable
Prevalence
Low
niche WordPress plugin, limited enterprise footprint
Data Quality
5 sources
Confidence: Medium

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 No
EPSS 0.2%
Patch available No
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.

SSVC AssessmentENISA

SSVC Decision
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
High
Technical Impact
Partial

Priority Score

36
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +36
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

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