CVE-2025-30532

5.9 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the Weather Layer WordPress plugin allows attackers to inject malicious scripts into web pages. When users view pages containing the injected scripts, the attacker can steal session cookies, redirect users, or perform actions on their behalf. All WordPress sites using Weather Layer versions up to 4.2.1 are affected.

💻 Affected Systems

Products:
  • Weather Layer WordPress Plugin
Versions: n/a through 4.2.1
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires the Weather Layer 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, install backdoors, deface websites, or redirect visitors to malicious sites.

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies, potentially compromising user accounts and performing unauthorized actions.

🟢

If Mitigated

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

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Stored XSS vulnerabilities are commonly exploited. The Patchstack reference provides technical details about the vulnerability.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Versions after 4.2.1

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/weather-layer/vulnerability/wordpress-weather-layer-plugin-4-2-1-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 Weather Layer and click 'Update Now' if available. 4. If no update is available, deactivate and delete the plugin, then install the latest version from WordPress repository.

🔧 Temporary Workarounds

Disable Weather Layer Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate weather-layer

Implement Content Security Policy

all

Add 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 Weather Layer plugin immediately
  • Implement web application firewall (WAF) rules to block XSS payloads

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for Weather Layer version. If version is 4.2.1 or earlier, you are vulnerable.

Check Version:

wp plugin get weather-layer --field=version

Verify Fix Applied:

After updating, verify Weather Layer version is higher than 4.2.1 in WordPress plugins page.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to Weather Layer endpoints
  • JavaScript payloads in input fields related to weather data

Network Indicators:

  • Malicious script tags in HTTP requests to WordPress admin or frontend
  • Unexpected external script loads from weather-related pages

SIEM Query:

source="wordpress.log" AND ("weather-layer" OR "weather_layer") AND ("script" OR "javascript" OR "onload" OR "onerror")

🔗 References

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