What is the CVSS score of CVE-2020-8510?

CVE-2020-8510 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.2%.

Phpabook CVE-2020-8510

CRITICAL

Improper Authentication (CWE-287)

2020-02-03 cve@mitre.org

Authentication Bypass Phpabook

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Feb 03, 2020 - 15:15 nvd

CRITICAL 9.8

DescriptionNVD

An issue was discovered in phpABook 0.9 Intermediate. On the login page, if one sets a userInfo cookie with the value of admin+1+en (user+perms+lang), one can login as any user without a password.

AnalysisAI

An issue was discovered in phpABook 0.9 Intermediate. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. An issue was discovered in phpABook 0.9 Intermediate. On the login page, if one sets a userInfo cookie with the value of admin+1+en (user+perms+lang), one can login as any user without a password. Affected products include: Phpabook Project Phpabook.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.