RCE in Weibo Rill-Flow

CVE-2025-4866

A vulnerability was found in weibocom rill-flow 0.1.18. It has been classified as critical. Affected is an unknown function of the component Management Console. The manipulation leads to code injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

EPSS: 0.005 (41.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-4866?
CVE-2025-4866 is a medium-severity vulnerability in Weibo Rill-Flow, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2025-05-18.
How severe is CVE-2025-4866?
Medium severity. CVSS v3 base score is 6.3 out of 10.
Is CVE-2025-4866 known to be exploited?
4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.