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CVE-2021-21438: Agents are able to see linked FAQ articles without permissions (defined in FAQ Category). This issue affects: FAQ version 6.0.29 and prior versions, OTRS version 7.0.24 and prior versions.

CVE-2021-21438 · published 5 years ago

Summary

Agents are able to see linked FAQ articles without permissions (defined in FAQ Category). This issue affects: FAQ version 6.0.29 and prior versions, OTRS version 7.0.24 and prior versions.

What to do

Update otrs faq to version 6.0.29 or later.
Update otrs otrs to version 7.0.24 or later.

Affected software

Vendor	Product	Affected versions
otrs	faq	>= 6.0.0, < 6.0.29 `cpe:2.3:a:otrs:faq::::::::`
otrs	otrs	>= 7.0.0, < 7.0.24 `cpe:2.3:a:otrs:otrs::::::::`

Original advisory text

Agents are able to see linked FAQ articles without permissions (defined in FAQ Category). This issue affects: FAQ version 6.0.29 and prior versions, OTRS version 7.0.24 and prior versions.

References

https://otrs.com/release-notes/otrs-security-advisory-2021-08/ Vendor Advisory

Fix within

Internet-facing 60 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit (estimated)
Gives an attacker partial control (estimated)

Severity

4.3 Medium

Exploitation

<1% chance of attack within 30 days

Type

CWE-264Permissions, Privileges, and Access Controls

CWE-276Incorrect Default Permissions

Timeline

Published22 Mar 2021

Updated4 Nov 2026

First seen29 Sep 2026

Sources

CVE-2021-21438 · NVD

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