CVE-2026-16056: CWE-862 Missing Authorization in Contest Gallery
CVE-2026-16056 is a vulnerability in the Contest Gallery WordPress plugin before version 30.0.7. It lacks proper authorization checks in one of its handlers, allowing any authenticated user, including those with Subscriber-level privileges, to access the entire stored OpenAI prompt history of the site. The vulnerability has a medium severity rating with a CVSS score of 4.3.
AI Analysis
Technical Summary
The Contest Gallery WordPress plugin versions prior to 30.0.7 do not perform capability or nonce checks in a specific handler. This missing authorization (CWE-862) allows any authenticated user, even with minimal privileges such as Subscriber, to read the site's stored OpenAI prompt history. This exposure is limited to confidentiality impact only, without integrity or availability effects. No official patch or remediation guidance is currently provided in the available data.
Potential Impact
An attacker with any authenticated user account, including Subscriber level, can read sensitive stored OpenAI prompt history from the site. This results in a confidentiality breach but does not affect data integrity or availability. The impact is limited to information disclosure of stored prompts.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict user account creation and limit authenticated user access to trusted individuals only to reduce exposure risk.
CVE-2026-16056: CWE-862 Missing Authorization in Contest Gallery
Description
CVE-2026-16056 is a vulnerability in the Contest Gallery WordPress plugin before version 30.0.7. It lacks proper authorization checks in one of its handlers, allowing any authenticated user, including those with Subscriber-level privileges, to access the entire stored OpenAI prompt history of the site. The vulnerability has a medium severity rating with a CVSS score of 4.3.
CVSS v3.1
Score 4.3medium
Affected software
Contest Gallery
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Contest Gallery WordPress plugin versions prior to 30.0.7 do not perform capability or nonce checks in a specific handler. This missing authorization (CWE-862) allows any authenticated user, even with minimal privileges such as Subscriber, to read the site's stored OpenAI prompt history. This exposure is limited to confidentiality impact only, without integrity or availability effects. No official patch or remediation guidance is currently provided in the available data.
Potential Impact
An attacker with any authenticated user account, including Subscriber level, can read sensitive stored OpenAI prompt history from the site. This results in a confidentiality breach but does not affect data integrity or availability. The impact is limited to information disclosure of stored prompts.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict user account creation and limit authenticated user access to trusted individuals only to reduce exposure risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-07-17T12:05:46.132Z
- State
- PUBLISHED
Threat ID: 6a7187d0bf32cb7a34e19ad3
Added to database: 08/04/2026, 06:33:52 UTC
Last enriched: 08/11/2026, 18:14:26 UTC
Last updated: 09/18/2026, 22:01:32 UTC
Views: 45
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.