CVE-2026-16057— Contest Gallery < 30.0.7 - Author+ Arbitrary Post Deletion via post_cg_youtube_delete_from_library
Quick assessment
Affected
Unknown Contest Gallery
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
WordPress Contest Gallery是WordPress基金会开源的一个管理竞赛作品的CMS组件。 WordPress Contest Gallery 30.0.7之前版本存在安全漏洞，该漏洞源于未执行对象级能力或nonce检查，仅通过粗略的角色成员测试进行限制，可能导致任何作者级别或更高级别的用户永久删除任意文章、页面及其他不属于自己的内容。
Possible ATT&CK Techniques 1 AI
T1499.002 · Service Exhaustion FloodAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Unknown | Contest Gallery | < 30.0.7 |
affected |
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I. Basic Information for CVE-2026-16057
Vulnerability Information
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Vulnerability Title
Contest Gallery < 30.0.7 - Author+ Arbitrary Post Deletion via post_cg_youtube_delete_from_library
Source: CVE Program / CVE List V5
Vulnerability Description
The Contest Gallery WordPress plugin before 30.0.7 does not perform per-object capability or nonce checks in one of its post-deletion handlers, gating it only by a coarse role-membership test, which allows any Author-level or higher user to permanently delete arbitrary posts, pages, and other content they do not own.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Contest Gallery 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Contest Gallery是WordPress基金会开源的一个管理竞赛作品的CMS组件。 WordPress Contest Gallery 30.0.7之前版本存在安全漏洞，该漏洞源于未执行对象级能力或nonce检查，仅通过粗略的角色成员测试进行限制，可能导致任何作者级别或更高级别的用户永久删除任意文章、页面及其他不属于自己的内容。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Unknown | Contest Gallery | 0 ~ 30.0.7 | - |
|
II. Public POCs for CVE-2026-16057
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-16057 (1)
-
🔗 Contest Gallery < 30.0.7 – Author+ Arbitrary Post Deletion via post_cg_youtube_delete_from_library | CVE 2026-16057 | Plugin Vulnerabilities Read full article exploit vdb-entry technical-description
Same Patch Batch · Unknown · 2026-08-03 · 27 CVEs total
| CVE-2026-16060 | Insert or Embed Articulate Content into WordPress <= 4.3000000027 - Editor+ Arbitrary File | |
| CVE-2026-16274 | Classified Listing < 5.4.4 - Contributor+ Unpublished Post Content Disclosure via rtcl_blo | |
| CVE-2026-15254 | Simply Schedule Appointments < 1.6.12.11 - Contributor+ Sensitive Data Disclosure via Admi | |
| CVE-2025-15672 | Chama < 1.0.13 - Unauthenticated PHP Object Injection | |
| CVE-2025-15673 | Import and export users and customers < 2.4.3 - Admin+ Arbitrary File Read | |
| CVE-2026-16532 | Link Library < 7.9.3 - Unauthenticated SQL Injection via the Front-End Link Submission For | |
| CVE-2026-16534 | Import and export users and customers < 2.4.2 - Custom Role Privilege Escalation to Admini | |
| CVE-2026-16276 | Classified Listing < 5.4.4 - Contributor+ Store Revenue Total Disclosure via rtcl_revenue_ | |
| CVE-2026-13340 | SVG Support < 2.5.17 - Author+ Stored XSS via .svgz Sanitization Bypass | |
| CVE-2026-12872 | Webinfos <= 1.2 - Unauthenticated Arbitrary File Upload | |
| CVE-2026-12965 | Super Store Finder < 7.11 - Unauthenticated SQL Injection via ssf_tracking | |
| CVE-2026-14557 | SoftMarket <= 1.0.0 - Unauthenticated Account Takeover via Email Verification Bypass | |
| CVE-2026-15231 | TaxoPress < 3.51.0 - Contributor+ Private Post Disclosure via IDOR | |
| CVE-2026-16565 | Dokan < 5.0.9 - Vendor+ Cross-Vendor Product Attribute Modification via Product Attribute | |
| CVE-2026-16250 | Personal QR Message <= 1.0 - Unauthenticated Arbitrary File Upload | |
| CVE-2026-15383 | Blog Floating Button <= 1.4.20 - Unauthenticated Stored XSS via User-Agent Header | |
| CVE-2026-15260 | Geo My WP < 4.5.5.3 - Subscriber+ Arbitrary Geolocation Record Modification and Deletion v | |
| CVE-2026-15931 | Simple Membership < 4.7.8 - Unauthenticated Stored XSS via PayPal Subscription Subscriber | |
| CVE-2026-15930 | Simple Membership < 4.7.8 - Unauthenticated Administrator Account Takeover via Registratio | |
| CVE-2026-16539 | SM Page Duplicator <= 1.0.0 - Editor+ SQL Injection via Page Duplication |
Showing top 20 of 27 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Contest Gallery
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WordPress Contest Gallery plugin <= 30.0.6 - Cross Site Scri -
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WordPress Contest Gallery plugin <= 30.0.0 - SQL Injection v
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Broken Link Notifier 1.3.1 - 2.0.0 - Unauthenticated SSRF vi -
CVE-2026-92424
Content Egg < 11.9.0 - Contributor+ Stored XSS via Import Qu
V. Comments for CVE-2026-16057
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