CVE-2020-10539

CRITICAL
9.8
CVSS Score
Published: February 5, 2021 at 09:21 AM UTC
Updated: June 17, 2026 at 02:47 AM UTC
1 product affected across 1 vendorEpikur

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Severity
CRITICAL9.8
Exploit prediction
EPSS 1%

Description

An issue was discovered in Epikur before 20.1.1. The Epikur server contains the checkPasswort() function that, upon user login, checks the submitted password against the user password's MD5 hash stored in the database. It is also compared to a second MD5 hash, which is the same for every user (aka a "Backdoor Password" of 3p1kursupport). If the submitted password matches either one, access is granted.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 20.1.1
Affected range stops below 20.1.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCExploitThird Party Advisory
https://www.x41-dsec.de/lab/advisories/x41-2020-003-epikur

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-287

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