| Plugin Name | Audiomack |
|---|---|
| Type of Vulnerability | Cross-Site Scripting (XSS) |
| CVE Number | CVE-2025-49357 |
| Urgency | Low |
| CVE Publish Date | 2025-12-31 |
| Source URL | CVE-2025-49357 |
CVE-2025-49357: Cross‑Site Scripting (XSS) in Audiomack WordPress Plugin — What Site Owners Must Do Today
TL;DR — A stored Cross‑Site Scripting (XSS) vulnerability (CVE‑2025‑49357) impacts Audiomack WordPress plugin versions ≤ 1.4.8. A user with Contributor privileges can inject payloads that execute in other users’ browsers. Exploitation requires user interaction. Immediate containment, scanning and hardening are necessary while waiting for an upstream patch.
Executive summary
On 31 December 2025 a stored Cross‑Site Scripting (XSS) issue affecting the Audiomack WordPress plugin (versions ≤ 1.4.8) was disclosed and assigned CVE‑2025‑49357. The vulnerability enables a Contributor‑level account to submit content containing HTML/JavaScript that is not sufficiently sanitized before rendering. When other authenticated users (for example Editors or Administrators) view or interact with the affected content, the injected script can execute in their browser. User interaction is required for exploitation.
Although the published CVSS score of 6.5 places this in the medium range, the real‑world impact depends on your deployment, roles and workflow. Editorial systems that allow Contributors to submit content which later is rendered without strict escaping are at elevated risk. Consequences can include session theft, unauthorized actions performed in an administrator’s browser, or escalation to full site compromise.
This advisory explains the technical nature of the issue, practical detection steps, immediate mitigations and longer‑term hardening measures to reduce exposure pending an official plugin fix.
What exactly is CVE‑2025‑49357?
- Vulnerability type: Cross‑Site Scripting (XSS)
- Affected software: Audiomack WordPress plugin (versions ≤ 1.4.8)
- CVE: CVE‑2025‑49357
- Privilege required: Contributor
- User interaction: Required (victim must click, preview, or otherwise view crafted content)
- CVSS v3.1 vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L (score 6.5)
In short: a Contributor can inject HTML/JavaScript content that is rendered without proper escaping. When a higher‑privileged user views the affected page or previews the content, the attacker’s script runs in that viewer’s browser.
Likely exploitation scenarios
Attackers use stored XSS in WordPress plugins mainly to target administrative users or site visitors. Given the Contributor requirement and the need for user interaction, realistic attack chains include:
-
Contributor → Administrator compromise
A Contributor submits a post, embed, or metadata containing crafted script. An Editor or Administrator previews or opens the item in the WP admin, executing the script which can steal cookies, trigger AJAX actions, create backdoor users or change configuration.
-
Contributor → Public content poisoning
If the injected content is displayed publicly without encoding, visitors can be redirected, shown malicious adverts, or served cryptomining scripts. This scenario is less common here but possible depending on template handling.
-
Social‑engineering amplification
An attacker may send crafted internal links or messages to prompt an admin to click or preview content — the user interaction requirement makes phishing an effective vector.
Why this matters even if severity is “medium”
- Administrator accounts are high‑value: one compromised admin can lead to full site takeover.
- Editorial systems often render rich previews and embeds in the browser, widening attack surface for XSS.
- Contributor roles are common in newsrooms and multi‑author sites — organisations may underestimate their risk.
- Non‑technical UI interactions (modals, previews) can easily trigger stored XSS chains.
How to detect whether your site is affected or has been exploited
Begin by confirming the plugin version and then hunt for injected script indicators in content and metadata.
1. Confirm plugin and version
wp plugin list --format=json | jq '.[] | select(.name=="audiomack")'
If the installed version is ≤ 1.4.8, treat the site as potentially vulnerable until verified otherwise.
2. Search for obvious script tags in content and meta tables
-- Search posts and postmeta
SELECT ID, post_title, post_type
FROM wp_posts
WHERE post_content LIKE '%
3. Inspect options and user meta
SELECT option_name FROM wp_options WHERE option_value LIKE '%
4. Check recently created/modified content and users
Review content and user accounts added or changed in recent days, focusing on Contributor accounts and unexpected admin user creation.
5. Examine web server and access logs
grep -iE "%3Cscript|
Look for POST requests to plugin endpoints or admin-ajax.php near times content was created.
6. Browser DOM and console inspection
If a page is suspected, view source and inspect the DOM and network calls for unexpected scripts or external connections.
7. Use automated scanning
Run a malware/database scanner that searches for embedded JavaScript in posts, options, postmeta and files. Always take backups before running repair/removal operations.
Immediate mitigation (what to do now)
If you run the Audiomack plugin on sites with version ≤ 1.4.8, take these steps immediately, in roughly this priority order:
-
Restrict Contributor access
Temporarily revoke or suspend Contributor accounts until you can review recent submissions. If your workflow requires Contributors, remove the capability to submit unfiltered HTML and restrict file upload or embed privileges.
-
Limit admin exposure
Enforce maintenance or restricted preview modes for administrators where possible. Limit admin access by IP or via VPN for the short term.
-
Apply virtual patching at the edge
If you use a managed web application firewall (WAF) or security plugin, enable rules that detect and block attempts to submit script tags, event handler attributes (onerror, onload, onclick), and javascript: URIs in form inputs. Virtual patching reduces immediate risk while you investigate and await an upstream patch.
-
Review recent submissions
Audit posts, custom post types and postmeta created by Contributors in the last 30 days for suspicious HTML or attributes.
-
Scan and clean
Run file and database scans for injected scripts. If malicious code is found, isolate, snapshot and clean carefully—do not delete rows blindly without understanding dependencies.
-
Rotate credentials and secrets
Force password resets for administrators and rotate API keys and application passwords that could be used from the site.
-
Monitor logs and audit trails
Watch access logs, WP audit logs and hosting control panels for anomalous admin actions, plugin/theme file changes or unexpected logins.
Long‑term remediation and hardening
Immediate containment is only the first step. Implement these longer‑term controls to reduce future risk:
-
Update or remove the plugin
When the plugin author releases a fix, update promptly. If the plugin is non‑essential, remove it to reduce attack surface.
-
Apply least privilege
Reassess user roles so Contributors cannot submit raw HTML or upload files without review. Use capability mapping or custom roles where necessary.
-
Output encoding and sanitization (developer guidance)
Ensure all data rendered to browsers is escaped according to context. Use WordPress core functions: esc_html(), esc_attr(), esc_url(), wp_kses_post() and wp_kses() with a strict allowlist.
-
Nonce and CSRF protections
Validate nonces and server‑side capabilities on all forms and AJAX endpoints to reduce abuse.
-
Content Security Policy (CSP)
Implement a restrictive CSP to limit where scripts can load from. CSP is not a cure‑all for stored XSS but raises the attacker’s cost significantly.
-
Harden admin access
Require two‑factor authentication (2FA) for admin/editor accounts, restrict admin access by IP where practical, and enable session logging and automated session invalidation for suspicious events.
-
Regular scanning and integrity monitoring
Schedule automated scans for script injection patterns and use checksums/file integrity monitoring to detect unexpected changes.
How managed defenses and virtual patching can reduce exposure
While the correct fix is a code change in the plugin (proper sanitization/escaping), managed defenses provide practical, near‑term risk reduction: