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CVE-2018-20301

22
FAUCET Score

CVE-2018-20301 is a Mass Assignment-like vulnerability in Steve Pallen Coherence before version 0.5.2, allowing authenticated users to modify unintended data fields during registration or update processes. Specifically, attackers can manipulate "coherence_fields" data, such as automatically confirming user accounts by submitting a "confirmed_at" parameter. This medium-severity vulnerability (CVSS 6.5) has a low attack complexity and can lead to high integrity impacts, but it has no known public exploits, Metasploit modules, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.5.2CPE matchmatch criteria
cpe:2.3:a:coherence_project:coherence:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.90%
Probability of exploitation in next 30 days
EPSS Percentile
55.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0090 is in the 68th percentile among its peer group of 21,951 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

Patch Available

Vendor Patches (1)

erlangpatch availablevia ghsa
Product: coherenceFixed in: 0.5.2

Vendor Advisories (1)

erlangGHSA-mrq8-53r4-3j5mmedium

Permissive parameters and privilege escalation

Feb 10, 2022

References

github.com / smpallen99/coherence/issues/270
Issue TrackingThird Party Advisory