Import XML and RSS Feeds < 2.1.5 - Unauthenticated RCE
CVE-2023-4521

9.8CRITICAL

Key Information:

Vendor

Wordpress
Status
Import Xml And Rss Feeds
Vendor
CVE Published:
25 September 2023

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 90%

What is CVE-2023-4521?

The Import XML and RSS Feeds WordPress plugin prior to version 2.1.5 is susceptible to a flaw that enables unauthenticated attackers to execute remote code on the affected site. This vulnerability arises from an oversight related to the handling of files generated by a proof-of-concept for an earlier reported issue. Specifically, the failure to delete the generated web shell files during the release of a new version poses a significant security risk. Site administrators using this plugin should apply necessary updates to mitigate potential exploitation.

Affected Version(s)

Import XML and RSS Feeds 2.1.4 < 2.1.5

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-2023-4521 - Proof of Concept

References

https://wpscan.com/vulnerability/de2cdb38-3a9f-448e-b564-...
exploitvdb-entrytechnical-description

EPSS Score

90% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
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

Enrico Marcolini
WPScan
.
The Cyber Security Vulnerability Database.