CVE-2026-10552— Blue Captcha <= 2.0.1 - Cross-Site Request Forgery via 'blcap_action' Parameter
Possible ATT&CK Techniques 2AI
T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| jotis | Blue Captcha | ≤ 2.0.1 | affected |
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I. Basic Information for CVE-2026-10552
Vulnerability Information
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Vulnerability Title
Blue Captcha <= 2.0.1 - Cross-Site Request Forgery via 'blcap_action' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The Blue Captcha plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to and including 2.0.1. This is due to missing or incorrect nonce validation on the main admin panel (blcap_main_page) and on the Hall of Shame and Log subpages, which accept a 'blcap_action' / 'action' parameter from $_REQUEST and perform destructive operations (plugin uninstall via blcap_uninstall(), log deletion via blcap_delete_logs(), Hall of Shame deletion via blcap_delete_ip_db(), and adding IPs to the banned list via update_option('blcap_settings')) with no wp_verify_nonce(), check_admin_referer(), or check_ajax_referer() calls anywhere in the codebase. This makes it possible for unauthenticated attackers to uninstall the plugin, delete audit logs, remove Hall of Shame entries, and add arbitrary IP addresses to the block list via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
jotis Blue Captcha 跨站请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
jotis Blue Captcha是jotis个人开发者的一款验证码组件。 jotis Blue Captcha 2.0.1及之前版本存在跨站请求伪造漏洞，该漏洞源于缺少或错误的nonce验证，可能允许未经身份验证的攻击者通过伪造请求卸载插件、删除审计日志、删除Hall of Shame条目并添加任意IP地址到黑名单。
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 |
|---|---|---|---|---|
| jotis | Blue Captcha | 0 ~ 2.0.1 | - |
II. Public POCs for CVE-2026-10552
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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Patches & Fixes for CVE-2026-10552 (2)
Vendor Pages for CVE-2026-10552 (1)
IV. Related Vulnerabilities
Same weakness: CWE-352
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AVideo channelToGallery.json.php Cross-Site Request Forgery - CVE-2026-67361
Joomla Extension - j2commerce.com - Unauthenticated file upl - CVE-2026-77029
Joomla Extension - yootheme.com - Missing CSRF tokens on fro
V. Comments for CVE-2026-10552
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