Cross-site request forgery in Blue Captcha - CVE-2026-10552
Published: June 24, 2026
Vulnerability identifier: #VU135101
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-10552
CWE-ID: CWE-352
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Jotis Kokkalis (BlueCoder)
Affected software:
Blue Captcha
Blue Captcha
Detailed vulnerability description
The vulnerability allows a remote attacker to perform cross-site request forgery attacks.
The vulnerability exists due to insufficient validation of the HTTP request origin in "blcap_action" parameter. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.
How to mitigate CVE-2026-10552
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.