4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
0.007 Low
EPSS
Percentile
79.7%
# Exploit Title: WordPress Plugin Photo Gallery by 10Web <= 1.5.34 - Persistent Cross Site Scripting
# inurl:"\wp-content\plugins\photo-gallery"
# Date: 09-10-2019
# Exploit Author: MTK (http://mtk911.cf/)
# Vendor Homepage: https://10web.io/
# Software Link: https://downloads.wordpress.org/plugin/photo-gallery.1.5.34.zip
# Version: Up to v1.5.34
# Tested on: Apache2/WordPress 5.2.2 - Firefox/Windows
# CVE : 2019-16118
# Software description:
Photo Gallery is the leading plugin for building beautiful mobile-friendly galleries in a few minutes.
# Technical Details & Impact:
XSS flaws occur whenever an application includes untrusted data in a new web page without proper validation or escaping, or updates an existing web page with user supplied data using a browser API that can create JavaScript. XSS allows attackers to execute scripts in the victimβs browser which can hijack user sessions, deface web sites, or redirect the user to malicious sites.
# POC
1. Go to options tab select watermark tab
2. Select text as watermark type
3. Add watermark text as XSS payload e.g;
"'><img src=a onerror='alert(2);'
4. Click Save.
5. It will show pop-up confirming existence of XSS vulnerability
# Timeline
09-01-2019 - Vulnerability Reported
09-03-2019 - Vendor responded
09-04-2019 - New version released (1.5.35)
09-10-2019 - Full Disclosure
# References:
https://wordpress.org/plugins/photo-gallery/#developers
https://plugins.trac.wordpress.org/changeset/2150912/photo-gallery/trunk/admin/controllers/Options.php?old=2142624&old_path=photo-gallery%2Ftrunk%2Fadmin%2Fcontrollers%2FOptions.php
https://plugins.trac.wordpress.org/changeset/2150912/photo-gallery/trunk/js/bwg.js?old=2135029&old_path=photo-gallery%2Ftrunk%2Fjs%2Fbwg.js
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16118
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
0.007 Low
EPSS
Percentile
79.7%