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CVE-2020-23837

25
FAUCET Score

CVE-2020-23837 describes a Cross-Site Request Forgery (CSRF) vulnerability in version 1.8.2 of the Multi User plugin for GetSimple CMS. This high-severity vulnerability (CVSS 8.8) allows an unauthenticated attacker to add new administrative users to the CMS if an authenticated administrator is tricked into visiting a malicious third-party site or clicking a crafted URL. The potential impact is high, leading to complete compromise of confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, nor are there publicly available exploit modules or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.8.2CPE matchmatch criteria
cpe:2.3:a:multi_user_project:multi_user:1.8.2:*:*:*:*:getsimple_cms:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.82%
Probability of exploitation in next 30 days
EPSS Percentile
53.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0082 is in the 55th percentile among its peer group of 14,855 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 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 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

get-simple.info / extend/plugin/multi-user/133
Third Party Advisory
exploit-db.com / exploits/48745
ExploitThird Party AdvisoryVDB Entry