simple-php-captcha before commit 9d65a945029c7be7bb6bc893759e74c5636be694 allows remote attackers to automatically generate the captcha response by running the same code on the client-side.
Severity
CVSS 3.0
5.3 medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS
1.2% chance of exploitation in the next 30 days; higher than 69% of CVEs (scores of 2026-10-31)