WordPress CVE-2026-4852

EUVD-2026-23974 MEDIUM

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

2026-04-20 Wordfence

GHSA-4qgv-929g-c62m

WordPress XSS

6.4

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Apr 20, 2026 - 21:45 vuln.today

DescriptionNVD

The Image Source Control Lite - Show Image Credits and Captions plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Image Source' attachment field in all versions up to, and including, 3.9.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

AnalysisAI

Stored XSS in Image Source Control Lite WordPress plugin versions up to 3.9.1 allows authenticated attackers with Author-level permissions or higher to inject malicious scripts via the 'Image Source' attachment field, executing arbitrary JavaScript in the browsers of any user viewing affected pages. The vulnerability stems from insufficient input sanitization and output escaping in the attachment metadata handler. …

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

Full analysis requires sign-in

Get intelligence summaries, risk assessment, exploit details, threat intel, and remediation guidance.

CVE-2026-4852 vulnerability details – vuln.today

Back