Vulnerability Report

CVE-2018-7753

Title: Mozilla Bleach Improper Input Validation

Input Validation Error

Proof Of Concept

No public PoC currently indexed for CVE-2018-7753.

CWE Category CWE-20
Published Date Mar 07, 2018
Modified Date Jun 17, 2026
Exploit Status Not Found
Score 9.8 CVSS v3.0
Exploit Probability (EPSS)
2.20%

Vulnerability Summary

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.

Impacted Vendors

M
mozilla 1

Reference Links

https://bugs.debian.org/892252 https://github.com/mozilla/bleach/commit/c5df5789ec3471a31311f42c2d19fc2cf21b35ef https://github.com/mozilla/bleach/releases/tag/v2.1.3 https://bugs.debian.org/892252 https://github.com/mozilla/bleach/commit/c5df5789ec3471a31311f42c2d19fc2cf21b35ef https://github.com/mozilla/bleach/releases/tag/v2.1.3
CVSS v3.0
Source Entity [email protected]
Severity CRITICAL
9.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity HIGH
7.5
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2018-7753 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.