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CVE-2020-13382

62
FAUCET Score

CVE-2020-13382 is a critical Incorrect Access Control vulnerability affecting openSIS through version 7.4, including os4ed opensis. With a CVSS score of 9.1, this vulnerability allows unauthenticated attackers to achieve high confidentiality and integrity impact without user interaction. While not listed on the KEV catalog or Hot List, a Metasploit module for unauthenticated PHP code execution exists, indicating readily available exploit code, despite minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 7.4CPE matchmatch criteria
cpe:2.3:a:os4ed:opensis:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
52.81%
Probability of exploitation in next 30 days
EPSS Percentile
98.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Metasploit: openSIS Unauthenticated PHP Code Execution · Jun 30, 2020
This CVE's current EPSS score of 0.5281 is in the 97th percentile among its peer group of 36,862 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

packetstormsecurity.com / files/158255/openSIS-7.4-Incorrect-Access-Control.html
ExploitThird Party AdvisoryVDB Entry
packetstormsecurity.com / files/158331/openSIS-7.4-Unauthenticated-PHP-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
github.com / OS4ED/openSIS-Responsive-Design/commits/master
Third Party Advisory