CVE-2018-7753
Bleach URI Scheme Restriction Bypass
9.8
CRITICAL
CVSS 3.1
EPSS 2.2%
描述
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.
如何修補 CVE-2018-7753
要修補 CVE-2018-7753,請將受影響套件升級到下列已修補版本。
- Debian/python-bleach—升級至 2.1.3-1 或更新版本
- —升級至 2.1.3 或更新版本
- —升級至 c5df5789ec3471a31311f42c2d19fc2cf21b35ef 或更新版本
CVE-2018-7753 正在被利用嗎?
低 — EPSS 為 2.2%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 2.1.3-1
- >= 2.1.0, < 2.1.3
- from 0, < c5df5789ec3471a31311f42c2d19fc2cf21b35ef | >= 2.1, < 2.1.3
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |