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CVE-2022-45966

31
FAUCET Score

CVE-2022-45966 is a critical arbitrary file upload vulnerability found in the file management function module of Classcms version 3.5. This flaw allows an unauthenticated attacker to upload malicious files without restriction, leading to severe impacts on confidentiality, integrity, and availability. With a CVSS score of 9.8, exploitation is straightforward, requiring no user interaction or complex conditions. While no public exploits, Metasploit modules, or Nuclei templates are currently available, and there is no evidence of active exploitation, the high risk score and ease of exploitation warrant immediate attention.

Impacted Technologies

VendorProductVersion(s)CPE
3.5CPE matchmatch criteria
cpe:2.3:a:classcms_project:classcms:3.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.73%
Probability of exploitation in next 30 days
EPSS Percentile
50.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0073 is in the 33rd percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / yinfei6/classcms
ExploitIssue TrackingThird Party Advisory