Medium severity · published Mar 25, 2026
CVE-2026-4766
Easy Image Gallery <= 1.5.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Gallery Shortcode Post Meta
6.4
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EI
Easy Image Gallery · devrix
through 1.5.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4766
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4766
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/easy-image-gallery/tags/1.5.3/includes/template-functions.php#L240
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/easy-image-gallery/trunk/includes/template-functions.php#L240
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/e7279f74-c2bd-4601-b8d5-0effe43705a5?source=cve
More from Easy Image Gallery
6.4
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Multiple Plugins <= (Various Versions) - Authenticated (Contributor+) Stored DOM-Based Cross-Site Scripting via prettyPhoto JavaScript Library