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CVE-2015-7578

20
FAUCET Score

CVE-2015-7578 is a cross-site scripting (XSS) vulnerability in the rails-html-sanitizer gem, affecting Ruby on Rails versions 4.2.x and 5.x. This medium-severity vulnerability (CVSS 6.1) allows unauthenticated attackers to inject arbitrary web script or HTML via crafted tag attributes, requiring user interaction and potentially leading to low impact on confidentiality and integrity. There is no evidence of active exploitation, public exploit code, or significant community discussion, suggesting a low current threat level.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.0.2CPE matchmatch criteria
cpe:2.3:a:rubyonrails:html_sanitizer:*:*:*:*:*:ruby:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.48%
Probability of exploitation in next 30 days
EPSS Percentile
82.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0249 is in the 92nd percentile among its peer group of 26,234 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

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 (1)

rubygemspatch availablevia ghsa
Product: rails-html-sanitizerFixed in: 1.0.3

Vendor Advisories (1)

rubygemsGHSA-59c7-4xj2-hgvwmedium

rails-html-sanitizer Cross-site Scripting vulnerability

Oct 24, 2017

References

lists.fedoraproject.org / pipermail/package-announce/2016-February/178046.html
lists.fedoraproject.org / pipermail/package-announce/2016-February/178064.html
lists.opensuse.org / opensuse-security-announce/2016-02/msg00014.html
lists.opensuse.org / opensuse-security-announce/2016-02/msg00024.html
lists.opensuse.org / opensuse-security-announce/2016-04/msg00053.html
github.com / rails/rails-html-sanitizer/commit/297161e29a3e11186ce4c02bf7defc088bf544d4
groups.google.com / forum/message/raw
openwall.com / lists/oss-security/2016/01/25/11
securitytracker.com / id/1034816