What is CVE-2022-42154?

CVE-2022-42154 is a critical-severity vulnerability in 74cms 74cmsse, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2022-10-17.

How severe is CVE-2022-42154?

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

Is CVE-2022-42154 known to be exploited?

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

Arbitrary file upload in 74cms 74cmsse

CVE-2022-42154

An arbitrary file upload vulnerability in the component /apiadmin/upload/attach of 74cmsSE v3.13.0 allows attackers to execute arbitrary code via a crafted PHP file.

Vulnerability class: Unrestricted File Upload

Published 2022-10-17 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.010 (61.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 61.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: +0.000

Affected products

74cms 74cmsse — versions 3.13.0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Public proof-of-concept exploits

References

github.com/xxhzz1/74cmsSE-Arbitrary-file-upload-vulnerability/issues/1 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2022-42154?: CVE-2022-42154 is a critical-severity vulnerability in 74cms 74cmsse, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2022-10-17.
How severe is CVE-2022-42154?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-42154 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.