CVE-2020-13893

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).
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 59%
VendorProductVersion
sageeasypay
10.7.5.10
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://gist.github.com/picar0jsu/4532a6d15e8f8d7597b7dca5136ad655
https://www.sage.com/en-sg/products/sage-easypay/
https://gist.github.com/picar0jsu/4532a6d15e8f8d7597b7dca5136ad655
https://www.sage.com/en-sg/products/sage-easypay/