Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2018-18943

18
FAUCET Score

CVE-2018-18943 is a Cross-Site Scripting (XSS) vulnerability affecting baserCMS versions prior to 4.1.4, specifically within the "Register New Category" feature of the Upload menu. This medium-severity vulnerability (CVSS 4.8) requires high privileges and user interaction, allowing an attacker to inject malicious scripts through the category name parameter. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.1.4CPE matchmatch criteria
cpe:2.3:a:basercms:basercms:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.8MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.7
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.73%
Probability of exploitation in next 30 days
EPSS Percentile
50.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0073 is in the 88th percentile among its peer group of 4,937 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 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)

composerpatch availablevia ghsa
Product: baserproject/basercmsFixed in: 4.1.4

Vendor Advisories (1)

composerGHSA-fx2m-5m9v-jhgpmedium

XSS in baserCMS before 4.1.4

May 14, 2022

References

basercms.net / release/4_1_4
Release NotesVendor Advisory
sunu11.com / 2018/10/31/baserCMS
ExploitThird Party Advisory