WordPress < 6.3.2 - Unauthenticated Post Author Email Disclosure
CVE-2023-5561

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
WordPress
Vendor
CVE Published:
16 October 2023

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 53%

What is CVE-2023-5561?

WordPress does not properly restrict which user fields are searchable via the REST API, allowing unauthenticated attackers to discern the email addresses of users who have published public posts on an affected website via an Oracle style attack

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Deploy the Patch

Affected Version(s)

WordPress 6.3.0 < 6.3.2

WordPress 6.2.0 < 6.2.3

WordPress 6.1.0 < 6.1.4

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2023-5561 - Proof of Concept

CVE-2023-5561-PoC
Created by pog007

CVE-2023-5561-POC-Updated
Created by rootxsushant

References

https://wpscan.com/vulnerability/19380917-4c27-4095-abf1-...
exploitvdb-entrytechnical-description
https://wpscan.com/blog/email-leak-oracle-vulnerability-a...
technical-description
https://lists.debian.org/debian-lts-announce/2023/11/msg0...

EPSS Score

53% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Marc Montpas
WPScan
JSON
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