CVE-2026-90989: CWE-200 Information Exposure in Tainacan
Description
A vulnerability in the Tainacan WordPress plugin before version 1.4.0 allows any authenticated subscriber to access reports REST endpoints that expose staff email addresses. This occurs because the plugin does not restrict access to users with management capabilities, leading to information exposure.
Affected software
Tainacan
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-90989 is an information exposure vulnerability (CWE-200) in the Tainacan WordPress plugin versions prior to 1.4.0. The plugin's reports REST endpoints are accessible to any authenticated subscriber rather than being restricted to users with management capabilities. This flaw allows unauthorized users to read the email addresses of the repository's staff.
Potential Impact
The vulnerability exposes sensitive information—specifically, staff email addresses—to any authenticated subscriber. This could lead to privacy violations and potentially facilitate targeted phishing or social engineering attacks against staff members. There is no indication of further exploitation or code execution.
Mitigation Recommendations
Upgrade the Tainacan plugin to version 1.4.0 or later, where this issue is fixed. Since the vulnerability is resolved in 1.4.0, applying this official fix will prevent unauthorized access to the reports REST endpoints.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-14T13:59:52.544Z
- State
- PUBLISHED
Threat ID: 6acf225a2cdf04f656513bb1
Added to database: 10/14/2026, 06:34:02 UTC
Last enriched: 10/14/2026, 06:49:28 UTC
Last updated: 10/14/2026, 19:00:33 UTC
Views: 15
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.