CVE-2019-10062

The HTMLSanitizer class in html-sanitizer.ts in all released versions of the Aurelia framework 1.x repository is vulnerable to XSS. The sanitizer only attempts to filter SCRIPT elements, which makes it feasible for remote attackers to conduct XSS attacks via (for example) JavaScript code in an attribute of various other elements. An attacker might also exploit a bug in how the SCRIPT string is processed by splitting and nesting them for example.

CVSS v3.1 NVD

6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v2.0 NVD

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N

EPSS

1.42% chance of exploitation in the next 30 days, 72nd percentile

Published

2021-05-13

Updated

2024-08-04

Proof-of-concept exploits (1)

• https://www.gosecure.net/blog/2021/05/12/aurelia-framework-insecure-default-allows-xss/

Security advisories

• https://aurelia.io
• aurelia/templating-resources/blob/0cef07a8cac8e99146d8e1c4b734491bb3dc4724/src/html-sanit…
• https://www.gosecure.net/blog/2021/05/12/aurelia-framework-insecure-default-allows-xss
• advisories/GHSA-m6j2-v3gq-45r5

References

• CVE Record
• NVD entry