PT-2026-33849 · WordPress · The Image Source Control Lite

Athiwat Tiprasaharn + 1 · Published 2026-04-20 · Updated 2026-04-21 · CVE-2026-4852

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Image Source Control Lite – Show Image Credits and Captions versions prior to 3.9.2

Description Insufficient input sanitization and output escaping in the 'Image Source' attachment field allow authenticated attackers with Author-level access and above to inject arbitrary web scripts. These scripts execute whenever a user accesses an affected page. Stored Cross-Site Scripting is a flaw where a malicious script is permanently stored on the target server.

Recommendations Update to a version newer than 3.9.1.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-4852

Affected Products

The Image Source Control Lite

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-4852 · Security Note
• https://wordfence.com/threat-intel/vulnerabilities/id/db0222e2-5a50-43f4-8620-12b97c712dec?source=cve · Note
• https://plugins.trac.wordpress.org/browser/image-source-control-isc/tags/3.8.0/public/views/global-list.php#L37 · Note
• https://twitter.com/CVEnew/status/2046571897199173706 · Twitter Post