profile.php in ExtCalendar 2 and earlier allows remote attackers to change the passwords of arbitrary users without providing the original password, and possibly perform other unauthorized actions, via modified values to register.php.

Threat-Mapped Scoring

Score: 3.0

Priority: P2 - Serious (High)

• S1 – Steal Customer Account Information

EPSS

Score: 0.04684
Percentile: 0.8889

CVSS Scoring

Mapped CWE(s)

• CWE-522 : Insufficiently Protected Credentials

All CAPEC(s)

CAPEC(s) with Mapped TTPs

Mapped ATT&CK TTPs

• T1552.004 : Private Keys
  Kill Chain: credential-access
• T1558.003 : Kerberoasting
  Kill Chain: credential-access
• T1543 : Create or Modify System Process
  Kill Chain: persistence
• T1021 : Remote Services
  Kill Chain: lateral-movement
• T1114.002 : Remote Email Collection
  Kill Chain: collection
• T1133 : External Remote Services
  Kill Chain: persistence
• T1078 : Valid Accounts
  Kill Chain: defense-evasion
• T1021.002 : SMB/Windows Admin Shares
  Kill Chain: lateral-movement
• T1110.004 : Credential Stuffing
  Kill Chain: credential-access
• T1550.002 : Pass the Hash
  Kill Chain: defense-evasion
• T1550.003 : Pass the Ticket
  Kill Chain: defense-evasion
• T1558 : Steal or Forge Kerberos Tickets
  Kill Chain: credential-access

Malware

APTs Threat Group Associations

Campaigns

Affected Products

• cpe:2.3:a:extcalendar_project:extcalendar:*:*:*:*:*:*:*:*

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