Arbitrary file upload in Classcms

CVE-2022-25581

Classcms v2.5 and below contains an arbitrary file upload via the component \class\classupload. This vulnerability allows attackers to execute code injection via a crafted .txt file.

Vulnerability class: Unrestricted File Upload

EPSS: 0.011 (62.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-25581?
CVE-2022-25581 is a high-severity vulnerability in Classcms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.8/10. Published 2022-03-18.
How severe is CVE-2022-25581?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2022-25581 known to be exploited?
5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.