CVE-2018-1000855: basecamp easymon Cross-site Scripting
Vulnerability summary
CVE-2018-1000855 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in basecamp easymon. EPSS estimates a 0.90% chance of exploitation in the next 30 days, higher than 58.9% of scored vulnerabilities.
Timeline
- 20-12-2018PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
easymon version 1.4 and earlier contains a Cross Site Scripting (XSS) vulnerability in Endpoint where monitoring is mounted that can result in Reflected XSS that affects Firefox. Can be used to steal cookies, depending on the cookie settings.. This attack appear to be exploitable via The victim must click on a crafted URL that contains the XSS payload. This vulnerability appears to have been fixed in 1.4.1 and later.
CVSS metrics
3 scores · 2 sources · 2 versions- OSV · RubygemsEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
0.90%
Chance of exploitation in the next 30 days
Percentile
59%
Versus all other CVEs
30-day change
0.00 pp
From 0.90% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Basecamp1 product
- easymon≤ 1.4
RubyGems1 product
- easymon< 1.4.1
2 vendors · 2 products
References
5 links- github.com/basecamp/easymonPACKAGE