CVE-2025-63052

6.5 MEDIUM

📋 TL;DR

This stored XSS vulnerability in the SimpLy Gallery WordPress plugin allows attackers to inject malicious scripts into web pages. When users view affected gallery pages, the scripts execute in their browsers, potentially stealing credentials or performing unauthorized actions. All WordPress sites using vulnerable versions of SimpLy Gallery are affected.

💻 Affected Systems

Products:
  • SimpLy Gallery WordPress Plugin
Versions: All versions up to and including 3.2.8
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires the SimpLy Gallery plugin to be installed and active on a WordPress site.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal administrator session cookies, take over WordPress sites, deface content, or redirect visitors to malicious sites.

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies or credentials, potentially compromising user accounts.

🟢

If Mitigated

With proper input validation and output encoding, malicious scripts would be neutralized before reaching users' browsers.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires contributor-level access or higher to inject malicious scripts into gallery content.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 3.2.9 or later

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/simply-gallery-block/vulnerability/wordpress-simply-gallery-plugin-3-2-8-cross-site-scripting-xss-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find SimpLy Gallery and click 'Update Now'. 4. Verify version is 3.2.9 or higher.

🔧 Temporary Workarounds

Disable SimpLy Gallery Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate simply-gallery-block

Restrict User Roles

all

Limit who can create or edit gallery content to trusted administrators only

🧯 If You Can't Patch

  • Implement a Web Application Firewall (WAF) with XSS protection rules
  • Enable Content Security Policy (CSP) headers to restrict script execution

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > SimpLy Gallery version. If version is 3.2.8 or lower, you are vulnerable.

Check Version:

wp plugin get simply-gallery-block --field=version

Verify Fix Applied:

After updating, confirm SimpLy Gallery version is 3.2.9 or higher in WordPress plugins list.

📡 Detection & Monitoring

Log Indicators:

  • Unusual gallery content modifications
  • Suspicious JavaScript in gallery entries
  • Multiple failed login attempts from new locations

Network Indicators:

  • Unexpected outbound connections from WordPress site after gallery page views
  • Suspicious JavaScript payloads in HTTP requests

SIEM Query:

source="wordpress.log" AND ("simply-gallery" OR "gallerycreator") AND ("script" OR "javascript" OR "onclick" OR "onload")

🔗 References

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