CVE-2020-13893

Description

Multiple stored cross-site scripting (XSS) vulnerabilities in Sage EasyPay 10.7.5.10 allow authenticated attackers to inject arbitrary web script or HTML via multiple parameters through Unicode Transformations (Best-fit Mapping), as demonstrated by the full-width variants of the less-than sign (%EF%BC%9C) and greater-than sign (%EF%BC%9E).

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.39%
Vendor Advisory sage.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.sage.com/en-sg/products/sage-easypay/ product vendor advisory
https://gist.github.com/picar0jsu/4532a6d15e8f8d7597b7dca5136ad655 third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-13893?
CVE-2020-13893 has been scored as a medium severity vulnerability.
How to fix CVE-2020-13893?
To fix CVE-2020-13893, 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-2020-13893 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-13893 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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