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CVE-2021-46360

42
FAUCET Score

CVE-2021-46360 is an authenticated remote code execution (RCE) vulnerability affecting Composr-CMS versions 10.0.39 and earlier. An authenticated attacker can exploit this by uploading a PHP shell via the admin-commandr page, allowing arbitrary code execution. This vulnerability is rated as High severity (CVSS 8.8), indicating a low attack complexity and requiring only low privileges for a network-based attack, leading to high impacts on confidentiality, integrity, and availability. While not listed on CISA's KEV catalog or the Hot List, a public exploit (EDB-51060) exists on ExploitDB. Despite this, there is no evidence of active exploitation, and the vulnerability has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 10.0.39CPE matchmatch criteria
cpe:2.3:a:ocproducts:composr:*:*:*:*:*:*:*:*

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
9.18%
Probability of exploitation in next 30 days
EPSS Percentile
94.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-51060 · Mar 25, 2023
This CVE's current EPSS score of 0.0918 is in the 94th percentile among its peer group of 17,823 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

packetstormsecurity.com / files/171489/Composr-CMS-10.0.39-Remote-Code-Execution.html
github.com / sartlabs/0days/blob/main/Composr-CMS/Exploit.py
ExploitThird Party Advisory