Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-40651

49
FAUCET Score

CVE-2021-40651 is a local file inclusion vulnerability affecting OS4Ed OpenSIS Community 8.0, specifically in the Modules.php file via the 'modname' parameter. This allows an authenticated attacker to disclose arbitrary files from the server's filesystem. With a CVSS score of 6.5 (Medium), it has a low attack complexity and can lead to high confidentiality impact. While not actively exploited in the wild or on the KEV catalog, public exploit code exists, including a Nuclei template and an ExploitDB entry, though it has garnered minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
8.0CPE matchmatch criteria
cpe:2.3:a:os4ed:opensis:8.0:*:*:*:community:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
17.95%
Probability of exploitation in next 30 days
EPSS Percentile
96.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2021-40651 · Oct 6, 2023
ExploitDB: EDB-50259 · Sep 3, 2021
This CVE's current EPSS score of 0.1794 is in the 99th percentile among its peer group of 21,977 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

github.com / MiSERYYYYY/Vulnerability-Reports-and-Disclosures/blob/main/OpenSIS-Community-8.0.md
ExploitThird Party Advisory
exploit-db.com / exploits/50259
ExploitThird Party AdvisoryVDB Entry
youtu.be / wFwlbXANRCo
ExploitThird Party Advisory