CVE-2025-23890

6.5 MEDIUM

📋 TL;DR

This DOM-based XSS vulnerability in the Easy Tweet Embed WordPress plugin allows attackers to inject malicious scripts into web pages viewed by other users. It affects all WordPress sites using Easy Tweet Embed versions up to 1.7. Attackers can steal session cookies, redirect users, or perform actions on their behalf.

💻 Affected Systems

Products:
  • Easy Tweet Embed WordPress Plugin
Versions: n/a through 1.7
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Affects WordPress installations with the plugin enabled. No special configuration required.

⚠️ 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, install backdoors, or redirect visitors to malicious sites.

🟠

Likely Case

Attackers steal user session cookies, perform unauthorized actions on behalf of users, or deface website content.

🟢

If Mitigated

With proper input validation and output encoding, the vulnerability would be prevented, limiting impact to minor data exposure.

🌐 Internet-Facing: HIGH
🏢 Internal Only: LOW

🎯 Exploit Status

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

DOM-based XSS typically requires user interaction but can be exploited via crafted links or embedded content.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.8 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/easy-tweet-embed/vulnerability/wordpress-easy-tweet-embed-plugin-1-7-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 Easy Tweet Embed. 4. Click 'Update Now' if available. 5. Alternatively, download version 1.8+ from WordPress repository and replace plugin files.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the Easy Tweet Embed plugin until patched.

wp plugin deactivate easy-tweet-embed

Content Security Policy

all

Implement CSP headers to restrict script execution sources.

Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to nginx config: add_header Content-Security-Policy "default-src 'self'; script-src 'self'";

🧯 If You Can't Patch

  • Disable the Easy Tweet Embed plugin immediately.
  • Implement a Web Application Firewall (WAF) with XSS protection rules.

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Easy Tweet Embed version. If version is 1.7 or earlier, you are vulnerable.

Check Version:

wp plugin get easy-tweet-embed --field=version

Verify Fix Applied:

Verify plugin version is 1.8 or later in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST/GET requests containing script tags or JavaScript in parameters
  • Multiple failed XSS attempts in web server logs

Network Indicators:

  • HTTP requests with malicious script payloads in query parameters
  • Unexpected redirects to external domains

SIEM Query:

source="web_server" AND (url="*<script>*" OR url="*javascript:*")

🔗 References

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