CVE-2023-4521

Import XML and RSS Feeds < 2.1.5 - Unauthenticated RCE

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.

Affected

Import XML and RSS Feeds

CVSS v3.1 NVD

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

40.83% chance of exploitation in the next 30 days, 99th percentile

Nuclei

critical

Published

2023-09-25

Updated

2025-04-23

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/de2cdb38-3a9f-448e-b564-a798d1e93481

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-4521.yaml

References

• CVE Record
• NVD entry