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CVE-2018-18921

22
FAUCET Score

CVE-2018-18921 describes a Cross-Site Request Forgery (CSRF) vulnerability in PHP Server Monitor versions prior to 3.3.2, specifically demonstrated through a Delete action. This medium-severity vulnerability (CVSS 6.5) can be exploited remotely with low attack complexity, requiring user interaction, and could lead to high integrity impact (e.g., unauthorized data deletion). There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.3.2CPE matchmatch criteria
cpe:2.3:a:phpservermonitor:php_server_monitor:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
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
0.61%
Probability of exploitation in next 30 days
EPSS Percentile
45.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0061 is in the 49th percentile among its peer group of 26,219 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

composerpatch availablevia ghsa
Product: phpservermon/phpservermonFixed in: 3.3.2
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-w2g4-g8xr-px4xmedium

CSRF in PHP Server Monitor before 3.3.2

May 14, 2022

References

github.com / phpservermon/phpservermon/issues/670
PatchThird Party Advisory
medium.com / bugbountywriteup/cve-2018-18921-php-server-monitor-3-3-1-cross-site-request-forgery-a73e8dae563
ExploitThird Party Advisory