What is CVE-2023-4521?

CVE-2023-4521 is a critical-severity vulnerability in Mooveagency Import Xml And Rss Feeds, classified under CWE-94 IMPROPER CONTROL OF GENERATION OF CODE ('CODE INJECTION'). CVSS score: 9.8/10. Published 2023-09-25.

How severe is CVE-2023-4521?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2023-4521 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Mooveagency Import Xml And Rss Feeds

CVE-2023-4521

The Import XML and RSS Feeds WordPress plugin before 2.1.5 contains a web shell, allowing unauthenticated attackers to perform RCE. The plugin/vendor was not compromised and the files are the result of running a PoC for a previously reported issue (https://wpscan.com/vulnerability/d4220025-2272-4d5f-9703-4b2ac4a51c42) and not deleting the created files when releasing the new version.

EPSS: 0.393 (98.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Mooveagency Import_xml_and_rss_feeds
Unknown Import Xml And Rss Feeds — versions 2.1.4

Public proof-of-concept exploits

20142995/nuclei-templates

References

contact@wpscan.com (Exploit, technical-description, Third Party Advisory, exploit, vdb-entry)

Frequently asked questions

What is CVE-2023-4521?: CVE-2023-4521 is a critical-severity vulnerability in Mooveagency Import Xml And Rss Feeds, classified under CWE-94 IMPROPER CONTROL OF GENERATION OF CODE ('CODE INJECTION'). CVSS score: 9.8/10. Published 2023-09-25.
How severe is CVE-2023-4521?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-4521 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.