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CVE-2020-23219

26
FAUCET Score

CVE-2020-23219 describes a critical arbitrary code execution vulnerability in Monstra CMS version 3.0.4. An authenticated attacker can exploit this by injecting a crafted payload into the "Snippet content" field within the "Edit Snippet" module. This vulnerability carries a high CVSS score of 8.8, indicating a network-based attack with low complexity and high impact on confidentiality, integrity, and availability. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, organizations using affected versions should prioritize patching due to the severe potential consequences.

Impacted Technologies

VendorProductVersion(s)CPE
3.0.4CPE matchmatch criteria
cpe:2.3:a:monstra:monstra_cms:3.0.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
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
1.58%
Probability of exploitation in next 30 days
EPSS Percentile
73.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0158 is in the 71st percentile among its peer group of 17,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / monstra-cms/monstra/issues/466
ExploitIssue TrackingThird Party Advisory