vulnwire
7.5high

CVE-2018-3740

Sanitize vulnerable to Improper Input Validation and Cross-site Scripting

Also known as GHSA-7f42-p84j-f58p

Published 8 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.5%
percentile 74%
Public exploits
0
none known

A specially crafted HTML fragment can cause Sanitize gem for Ruby to allow non-whitelisted attributes to be used on a whitelisted HTML element.

Exploit prediction (EPSS)

1.47% probability of exploitation in the next 30 days, higher than 74% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD2.05.0AV:N/AC:L/Au:N/C:N/I:P/A:N
GitHub3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

EcosystemPackageAffectedFixed in
rubygemssanitize
>=3.0.0, <4.6.3
4.6.3

Affected products

  • Ryan Grove sanitize (ruby gem)

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
  • CWE-20 Improper Input Validation

References

  • debian.org /security/2018/dsa-4358 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • github.com /rgrove/sanitize/issues/176 · x_refsource_CONFIRM, x_transferred
  • about.gitlab.com /2018/06/25/security-release-gitlab-11-dot-0-dot-1-released/ · x_refsource_CONFIRM, x_transferred
  • github.com /rgrove/sanitize/commit/01629a162e448a83d901456d0ba8b65f3b03d46e · x_refsource_CONFIRM, x_transferred
  • nvd.nist.gov /vuln/detail/CVE-2018-3740 · advisory
  • github.com /rgrove/sanitize/commit/93feeb38e21864146bb29191792b971dbe1ec62e · web
  • about.gitlab.com /2018/06/25/security-release-gitlab-11-dot-0-dot-1-released · web
  • github.com /rgrove/sanitize · package
  • github.com /rubysec/ruby-advisory-db/blob/master/gems/sanitize/CVE-2018-3740.yml · web

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.