CVE-2026-42688

Modula Image Gallery – Photo Grid & Video Gallery <= 2.14.23 - Authenticated (Subscriber+) Stored Cross-Site Scripting

2026-05-26 00:00

Strategic Overview

Status: Patched in 2.14.24
Affected Plugin: Modula Image Gallery – Photo Grid & Video Gallery
Affected Version: <= 2.14.23
CVSS: 6.4Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2026-42688

View all Modula Image Gallery – Photo Grid & Video Gallery vulnerabilities

At a glance

CVE-2026-42688 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Modula Image Gallery WordPress plugin, affecting versions <= 2.14.23. It carries a CVSS score of 6.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 2.14.24; sites on affected versions should update now. Disclosed May 2026, reported by Nguyen Ba Khanh.

Vulnerability Overview

The Modula Image Gallery – Photo Grid & Video Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.14.23 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reaching this weakness in Modula Image Gallery <= 2.14.23 takes an account at Subscriber level or above. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For Modula Image Gallery the fix is 2.14.24: builds <= 2.14.23 are affected, anything from 2.14.24 onward is not.

Remediation

Update to version 2.14.24, or a newer patched version

How does WordSec protect against this?

An attacker needs Subscriber access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Modula Image Gallery 2.14.24 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-42688 https://www.wordfence.com/threat-intel/vulnerabilities/id/49ef0bfe-9bdf-4117-81f7-1ec73b5247ae https://nvd.nist.gov/vuln/detail/CVE-2026-42688

Related records

Same weakness class

Other vulnerabilities in Modula Image Gallery – Photo Grid & Video Gallery

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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