CVE-2025-12713 – The Soundslides WordPress plugin has a stored X... (How to Fix)

📋 TL;DR

The Soundslides 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 whenever users view the compromised pages, potentially stealing credentials or performing unauthorized actions. All WordPress sites using Soundslides version 1.4.2 or earlier are affected.

💻 Affected Systems

Products:

WordPress Soundslides Plugin

Versions: All versions up to and including 1.4.2

Operating Systems: All

Default Config Vulnerable: ⚠️ Yes

Notes: Requires WordPress installation with Soundslides plugin active. Contributor-level access or higher needed for exploitation.

⚠️ 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:

Review the CVE details at NVD
Check vendor security advisories for your specific version
Test if the vulnerability is exploitable in your environment
Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal administrator credentials, take over the WordPress site, deface pages, or redirect users to malicious sites, potentially leading to complete site compromise and data theft.

🟠

Likely Case

Attackers inject malicious scripts to steal user session cookies, perform actions as authenticated users, or display phishing content to visitors.

🟢

If Mitigated

With proper user role management and input validation, impact is limited to low-privileged user sessions and isolated page content manipulation.

🌐 Internet-Facing: HIGH

🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: LIKELY

Unauthenticated Exploit: ✅ No

Complexity: LOW

Exploitation requires authenticated access but is straightforward once attacker has Contributor privileges. XSS payloads can be delivered via shortcode attributes.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.4.3 or later

Vendor Advisory: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3208220%40soundslides&new=3208220%40soundslides&sfp_email=&sfph_mail=

Restart Required: No

Instructions:

1. Log into WordPress admin panel
2. Navigate to Plugins → Installed Plugins
3. Find Soundslides plugin
4. Click 'Update Now' if update available
5. Alternatively, download version 1.4.3+ from WordPress repository and manually update

🔧 Temporary Workarounds

Disable Soundslides Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate soundslides

Restrict User Roles

all

Limit Contributor and higher role assignments to trusted users only

🧯 If You Can't Patch

Implement web application firewall (WAF) rules to block XSS payloads in shortcode attributes
Remove Contributor role from untrusted users and audit existing Contributor accounts

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for Soundslides version. If version is 1.4.2 or earlier, system is vulnerable.

Check Version:

wp plugin get soundslides --field=version

Verify Fix Applied:

Verify Soundslides plugin version is 1.4.3 or later in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

Unusual shortcode modifications in post/page edits
Multiple failed login attempts followed by successful Contributor login
Suspicious script tags in page content

Network Indicators:

Unexpected JavaScript execution from WordPress pages
External script loading from unfamiliar domains

SIEM Query:

source="wordpress" AND (event="plugin_update" AND plugin="soundslides" AND version<="1.4.2") OR (event="post_edit" AND user_role="contributor" AND content CONTAINS "[soundslides")

📊 Metadata

CVE ID: CVE-2025-12713

CVSS v3 Score: 6.4 (MEDIUM)

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CWE: CWE-79

EPSS Score: 0.05% exploit probability (14.9th percentile)

Published: November 27, 2025

Last Updated: December 1, 2025

🔗 References

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