CVE-2026-85574: CWE-862 Missing Authorization in Unbounce Landing Pages
The Unbounce Landing Pages WordPress plugin before 1.1.5 does not perform any authorisation check when updating the configuration its front-end proxy relies on, allowing any authenticated user, such as a subscriber, to point that proxy at a host they control and have arbitrary content served from the site's own origin.
AI Analysis
Technical Summary
CVE-2026-85574 is a missing authorization vulnerability (CWE-862) in the Unbounce Landing Pages WordPress plugin before version 1.1.5. The plugin does not verify user permissions when updating the configuration of its front-end proxy. This allows any authenticated user, such as a subscriber, to modify the proxy target to an attacker-controlled host, enabling arbitrary content to be served from the affected site's origin domain.
Potential Impact
Any authenticated user, even those with minimal privileges, can manipulate the plugin's proxy configuration to serve arbitrary content from the site's origin. This could lead to content spoofing or other unauthorized content delivery under the trusted domain, potentially undermining user trust and site integrity.
Mitigation Recommendations
Upgrade the Unbounce Landing Pages plugin to version 1.1.5 or later, where proper authorization checks are implemented. No other mitigation is indicated by the available data.
CVE-2026-85574: CWE-862 Missing Authorization in Unbounce Landing Pages
Description
The Unbounce Landing Pages WordPress plugin before 1.1.5 does not perform any authorisation check when updating the configuration its front-end proxy relies on, allowing any authenticated user, such as a subscriber, to point that proxy at a host they control and have arbitrary content served from the site's own origin.
CVSS v3.1
Score 8.0high
Affected software
Unbounce Landing Pages
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-85574 is a missing authorization vulnerability (CWE-862) in the Unbounce Landing Pages WordPress plugin before version 1.1.5. The plugin does not verify user permissions when updating the configuration of its front-end proxy. This allows any authenticated user, such as a subscriber, to modify the proxy target to an attacker-controlled host, enabling arbitrary content to be served from the affected site's origin domain.
Potential Impact
Any authenticated user, even those with minimal privileges, can manipulate the plugin's proxy configuration to serve arbitrary content from the site's origin. This could lead to content spoofing or other unauthorized content delivery under the trusted domain, potentially undermining user trust and site integrity.
Mitigation Recommendations
Upgrade the Unbounce Landing Pages plugin to version 1.1.5 or later, where proper authorization checks are implemented. No other mitigation is indicated by the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-04T10:54:30.600Z
- State
- PUBLISHED
Threat ID: 6aae2c6755bf5e2cf5363ad5
Added to database: 09/19/2026, 06:32:07 UTC
Last enriched: 09/19/2026, 06:47:18 UTC
Last updated: 09/20/2026, 01:29:23 UTC
Views: 11
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.