CVE-2018-18531

2022-10-0316:22:03

mitre

www.cve.org

kaptcha 2.3.2

captcha generation

brute force

9.4 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

73.3%

JSON

text/impl/DefaultTextCreator.java, text/impl/ChineseTextProducer.java, and text/impl/FiveLetterFirstNameTextCreator.java in kaptcha 2.3.2 use the Random (rather than SecureRandom) function for generating CAPTCHA values, which makes it easier for remote attackers to bypass intended access restrictions via a brute-force approach.

References

github.com/penggle/kaptcha/issues/3