CVE-2020-9003

Modula Image Gallery <= 2.2.4 - Authenticated Stored Cross-Site Scripting

2020-02-19 00:00

Strategic Overview

Status: Patched in 2.2.5
Affected Plugin: Modula Image Gallery – Photo Grid & Video Gallery
Affected Version: < 2.2.5
CVSS: 6.4Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2020-9003

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

At a glance

CVE-2020-9003 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 < 2.2.5. It carries a CVSS score of 6.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account. The issue is fixed in version 2.2.5; sites on affected versions should update now. Disclosed February 2020, reported by Vishnupriya Ilango.

Vulnerability Overview

A stored XSS vulnerability exists in the Modula Image Gallery plugin before 2.2.5 for WordPress. Successful exploitation of this vulnerability would allow an authenticated low-privileged user to inject arbitrary JavaScript code that is viewed by other users.

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 < 2.2.5 takes any authenticated account. 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 2.2.5: builds < 2.2.5 are affected, anything from 2.2.5 onward is not.

Remediation

Update to version 2.2.5, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Modula Image Gallery: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Modula Image Gallery 2.2.5 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2020-9003 https://www.wordfence.com/threat-intel/vulnerabilities/id/691962c2-e67f-4f6e-9002-6f2a4ccbbdee https://nvd.nist.gov/vuln/detail/CVE-2020-9003

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

This record contains material that is subject to copyright

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

https://www.cve.org/Legal/TermsOfUse

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/