CVE-2021-3694

LedgerSMB does not sufficiently HTML-encode error messages sent to the ...

Published 23 Aug 2021Modified 17 Jun 2026CWE 79

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.6CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Ubuntu (medium).

Description

LedgerSMB does not sufficiently HTML-encode error messages sent to the browser. By sending a specially crafted URL to an authenticated user, this flaw can be abused for remote code execution and information disclosure.

Affected packages and fixed versions

Source	Package	Fixed in
debian 10	ledgersmb	1.6.9+ds-1+deb10u2
debian 11	ledgersmb	1.6.9+ds-2+deb11u2
debian 12	ledgersmb	1.6.9+ds-2.1
echo	ledgersmb	1.6.9+ds-2.1
ubuntu 18.04-ESM	ledgersmb	1.4.42+ds-1ubuntu0.1~esm1
ubuntu 20.04	ledgersmb	1.6.9+ds-1ubuntu0.1
ubuntu 20.04-ESM	ledgersmb	1.6.9+ds-1ubuntu0.1
ubuntu 21.04	ledgersmb	1.6.9+ds-2ubuntu0.1

References

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RecordsEach decision is recorded with the policy that ran and its hash, then sealed under a signed checkpoint.

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Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.