What is CVE-2022-43450?

CVE-2022-43450 is a medium-severity vulnerability in Xwp Stream, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2023-12-19.

How severe is CVE-2022-43450?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Is CVE-2022-43450 known to be exploited?

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

Auth bypass in Xwp Stream

CVE-2022-43450

Authorization Bypass Through User-Controlled Key vulnerability in XWP Stream.This issue affects Stream: from n/a through 3.9.2.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2023-12-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.007 (49.4th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Xwp Stream

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

Public proof-of-concept exploits

20142995/nuclei-templates

References

patchstack.com/database/vulnerability/stream/wordpress-stream-plugin-3-9-2-auth… (Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2022-43450?: CVE-2022-43450 is a medium-severity vulnerability in Xwp Stream, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2023-12-19.
How severe is CVE-2022-43450?: Medium severity. CVSS v3 base score is 4.3 out of 10.
Is CVE-2022-43450 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.