CVE-2018-7753

Description

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.54%
Third-Party Advisory debian.org Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/mozilla/bleach/releases/tag/v2.1.3 third party advisory
https://github.com/mozilla/bleach/commit/c5df5789ec3471a31311f42c2d19fc2cf21b35ef third party advisory patch
https://bugs.debian.org/892252 third party advisory

Frequently Asked Questions

What is the severity of CVE-2018-7753?
CVE-2018-7753 has been scored as a critical severity vulnerability.
How to fix CVE-2018-7753?
To fix CVE-2018-7753, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-7753 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-7753 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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