CVE-2021-3693

Cross-site Scripting (XSS) - DOM in ledgersmb/ledgersmb

Description

LedgerSMB does not check the origin of HTML fragments merged into the browser's DOM. By sending a specially crafted URL to an authenticated user, this flaw can be abused for remote code execution and information disclosure.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 2.37% Top 20%
Vendor Advisory debian.org Vendor Advisory ledgersmb.org
Affected: ledgersmb ledgersmb/ledgersmb
Published at:
Updated at:

References

Link Tags
https://huntr.dev/bounties/daf1384d-648a-43fd-9b35-5c37d8ead667 third party advisory
https://ledgersmb.org/cve-2021-3693-cross-site-scripting patch vendor advisory
https://www.debian.org/security/2021/dsa-4962 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-3693?
CVE-2021-3693 has been scored as a high severity vulnerability.
How to fix CVE-2021-3693?
To fix CVE-2021-3693, 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-2021-3693 being actively exploited in the wild?
It is possible that CVE-2021-3693 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3693?
CVE-2021-3693 affects ledgersmb ledgersmb/ledgersmb.
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