Easy Image Gallery <= 1.5.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Gallery Shortcode Post Meta

2026-03-20 15:17

Athiwat Tiprasaharn (Jitlada)

Strategic Overview

Status

Unpatched

Affected PluginEasy Image Gallery

Affected Version<= 1.5.3

CVSS6.4Medium

CVECVE-2026-4766

View all Easy Image Gallery vulnerabilities

Vulnerability Overview

The Easy Image Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Gallery shortcode post meta field in all versions up to, and including, 1.5.3. This is due to insufficient input sanitization and output escaping on user-supplied gallery shortcode values. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical Analysis

REMEDIATION: No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement. --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

https://www.cve.org/CVERecord?id=CVE-2026-4766 https://www.wordfence.com/threat-intel/vulnerabilities/id/e7279f74-c2bd-4601-b8d5-0effe43705a5

CVSS Vector

6.4

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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