Vulnerability identifier: #VU10962

Vulnerability risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-7753

CWE-ID: CWE-229

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Bleach
Universal components / Libraries / Libraries used by multiple products

Vendor: Mozilla

Description
The vulnerability allows a remote unauthenticated attacker to bypass sanitization and access sensitive information on the target system.

The weakness exists due to insufficient URI value sanitization. A remote attacker can submit a specially crafted value containing character entities, bypass value sanitization and gain access to potentially sensitive information.

Mitigation
Update to version 2.1.3.

Vulnerable software versions

Bleach: 2.1.1 - 2.1.2

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External links
http://github.com/mozilla/bleach/pull/356

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.