Improper input validation in Mozilla Bleach
CVE-2018-7753
An issue was discovered in Bleach 2.1.x before 2.1.3. Attributes that have URI values weren't properly sanitized if the values contained character entities. Using character entities, it was possible to construct a URI value with a scheme that was not allowed that would slide through unsanitized.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.022 (81.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: +0.000
Affected products
- Mozilla Bleach — versions 2.1, 2.1.1, 2.1.2
Weakness classification (CWE)
References
- github.com/mozilla/bleach/releases/tag/v2.1.3 (Third Party Advisory)
- github.com/mozilla/bleach/commit/c5df5789ec3471a31311f42c2d19fc2cf21b35ef (Patch, Third Party Advisory)
- bugs.debian.org/892252 (Third Party Advisory)
Frequently asked questions
- What is CVE-2018-7753?
- CVE-2018-7753 is a critical-severity vulnerability in Mozilla Bleach, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2018-03-07.
- How severe is CVE-2018-7753?
- Critical severity. CVSS v3 base score is 9.8 out of 10.