CVE-2025-1783
📋 TL;DR
The Gallery Styles WordPress plugin has a stored XSS vulnerability that allows authenticated attackers with Contributor access or higher to inject malicious scripts into website pages. These scripts execute automatically when users visit the compromised pages, potentially affecting all visitors to vulnerable WordPress sites.
💻 Affected Systems
- Gallery Styles WordPress Plugin
📦 What is this software?
Gallery Styles by Tiptoppress
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, redirect users to malicious sites, deface websites, or perform actions on behalf of authenticated users.
Likely Case
Attackers with contributor accounts inject malicious scripts to steal admin cookies or redirect users to phishing sites.
If Mitigated
With proper user access controls and content security policies, impact is limited to script execution in the context of the vulnerable page.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once an attacker has Contributor-level credentials.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.3.5 or later
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3251908/gallery-styles/trunk/gallery-styles.php
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Gallery Styles plugin. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 1.3.5+ from WordPress plugin repository and manually update.
🔧 Temporary Workarounds
Disable Gallery Styles Plugin
allTemporarily deactivate the vulnerable plugin until patched
wp plugin deactivate gallery-styles
Restrict User Roles
allTemporarily remove Contributor role access or restrict who can create/edit posts
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict script execution
- Regularly audit user accounts and remove unnecessary Contributor-level access
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for Gallery Styles versionCheck Version:
wp plugin get gallery-styles --field=versionVerify Fix Applied:
Verify Gallery Styles plugin version is 1.3.5 or higher in WordPress admin📡 Detection & Monitoring
Log Indicators:
- Unusual post/page edits by Contributor users
- Suspicious script tags in post content
Network Indicators:
- Unexpected external script loads from WordPress pages
SIEM Query:
source="wordpress.log" AND ("gallery-styles" OR "gallery block") AND ("edit" OR "update")