What’s Vulnerable › Vulnerabilities

CVE-2020-11821

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-04-27 · updated 2026-06-17
• Weakness: CWE-522

Description

In Rukovoditel 2.5.2, users' passwords and usernames are stored in a cookie with URL encoding, base64 encoding, and hashing. Thus, an attacker can easily apply brute force on them.

Affected products

• Rukovoditel: 2.5.2

References

• https://fatihhcelik.blogspot.com/2020/01/rukovoditel-password-hash-in-cookie-url.html
• https://fatihhcelik.blogspot.com/2020/01/rukovoditel-password-hash-in-cookie-url.html

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