CVE-2026-9048: Slider Revolution Information Disclosure

CVE-2026-9048 Overview

CVE-2026-9048 is a sensitive information exposure vulnerability in the Slider Revolution plugin for WordPress, affecting versions 7.0.0 through 7.0.14. The flaw resides in the slider.get.full AJAX action, which fails to enforce proper authorization checks before returning slider configuration data. Authenticated attackers with Contributor-level access or higher can extract raw social media API credentials stored in any configured slider's settings. Exposed secrets include the Instagram OAuth token, Flickr API key, YouTube Data API key, and Facebook App ID. The weakness is classified under [CWE-863] (Incorrect Authorization).

Critical Impact
Authenticated contributors can harvest third-party API credentials from configured sliders, enabling account takeover or abuse of linked social media services.

Affected Products

Slider Revolution plugin for WordPress, versions 7.0.0 through 7.0.14
WordPress sites with Contributor-level (or higher) user registration enabled
Slider configurations integrating Instagram, Flickr, YouTube, or Facebook APIs

Discovery Timeline

2026-06-02 - CVE-2026-9048 published to NVD
2026-06-02 - Last updated in NVD database

Technical Details for CVE-2026-9048

Vulnerability Analysis

The vulnerability stems from missing authorization enforcement in the slider.get.full AJAX handler exposed by the Slider Revolution plugin. The handler returns the complete slider object, including stored credential fields, to any authenticated request that satisfies the plugin's nonce check. Because Contributor accounts can legitimately access the plugin's admin-ajax endpoints, they receive full slider payloads containing fields that should remain server-side only.

The returned data includes raw, unredacted secrets such as Instagram OAuth tokens, Flickr API keys, YouTube Data API keys, and Facebook App IDs. These credentials grant downstream access to third-party social platforms and can be used outside the WordPress trust boundary. Attackers can pivot from low-privilege WordPress accounts to control of linked social media identities or quota-bearing API projects.

Root Cause

The slider.get.full action implements authentication but not authorization scoping. The plugin treats any nonce-bearing authenticated user as eligible to retrieve full slider configuration, rather than restricting credential fields to Administrator-level capabilities. This is a classic [CWE-863] incorrect authorization pattern where capability checks do not match the sensitivity of the returned data.

Attack Vector

An attacker registers or compromises a Contributor-level WordPress account on a target site. They then issue an authenticated POST request to wp-admin/admin-ajax.php invoking the slider.get.full action with a valid nonce and a known or enumerated slider ID. The response includes the slider's full settings tree, from which the attacker extracts stored API credentials for reuse against external services.

No verified public exploit code is available. See the Wordfence Vulnerability Report for additional technical context.

Detection Methods for CVE-2026-9048

Indicators of Compromise

Unexpected POST requests to /wp-admin/admin-ajax.php with the action=slider.get.full parameter originating from non-administrator accounts.
Outbound API calls to Instagram, Flickr, YouTube, or Facebook endpoints from hosts or IP ranges not associated with the WordPress server.
Unauthorized usage spikes or quota alerts on social media developer consoles tied to keys configured in Slider Revolution.
New or recently elevated Contributor accounts that access plugin AJAX endpoints shortly after creation.

Detection Strategies

Inspect web server access logs for admin-ajax.php requests carrying the slider.get.full action and correlate the requesting user role against the WordPress users table.
Deploy a web application firewall rule that blocks or alerts on slider.get.full requests made by users below Administrator capability.
Audit Slider Revolution slider configurations to enumerate which sliders contain populated API credential fields and monitor access to those slider IDs.

Monitoring Recommendations

Forward WordPress audit logs and admin-ajax.php access logs to a centralized SIEM for query-based hunting.
Enable anomaly detection on third-party API key usage through provider-side logging (Instagram Graph API, Flickr, YouTube Data API, Facebook).
Alert on creation of new Contributor or Author accounts followed by AJAX activity targeting plugin endpoints within a short interval.

How to Mitigate CVE-2026-9048

Immediate Actions Required

Update Slider Revolution to a version later than 7.0.14 as soon as the vendor publishes a fixed release.
Rotate all Instagram OAuth tokens, Flickr API keys, YouTube Data API keys, and Facebook App credentials configured in any slider.
Audit WordPress user accounts and remove or downgrade any unnecessary Contributor-level or higher accounts.
Review external API provider logs for unauthorized usage between the plugin install date and credential rotation.

Patch Information

Refer to the Slider Revolution vendor site for the latest plugin release and changelog. Confirm the installed version is above 7.0.14 before reintroducing API credentials. The Wordfence Vulnerability Report tracks patch availability and signature coverage.

Workarounds

Temporarily remove API credentials from slider configurations until the plugin is patched, using social media integrations only when required.
Restrict user registration and disable self-service Contributor account creation on affected sites.
Apply web application firewall rules that block slider.get.full AJAX requests from non-administrator sessions.
Place WordPress admin endpoints behind IP allowlists or reverse-proxy authentication where operationally feasible.

bash

# Example WAF rule (ModSecurity) blocking slider.get.full for non-admins
SecRule REQUEST_URI "@contains /wp-admin/admin-ajax.php" \
  "chain,phase:2,deny,status:403,id:1009048,\
   msg:'Block Slider Revolution slider.get.full (CVE-2026-9048)'"
SecRule ARGS:action "@streq slider.get.full" \
  "chain"
SecRule REQUEST_COOKIES:/wordpress_logged_in_/ "@rx .+" \
  "t:none"