CVE-2021-21435 Information exposure in PDF export

What is CVE-2021-21435?

CVE-2021-21435 is a medium-severity vulnerability in Otrs Otrs, published on 8 Feb 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Article Bcc fields and agent personal information are shown when customer prints the ticket (PDF) via external interface. This issue affects: OTRS AG OTRS 7.0.x version 7.0.23 and prior versions; 8.0.x version 8.0.10 and prior versions.

Weakness: CWE-200

Which versions are affected by CVE-2021-21435?

It affects 1 product.

Products include Otrs Otrs.

How do I fix CVE-2021-21435?

No fix has been published for CVE-2021-21435 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-21435 being exploited?

There is no known exploitation of CVE-2021-21435 in the wild and no public exploit code.

Other vulnerabilities in Otrs Otrs

• CVE-2026-48188 SQL Injection via MySQL Quote Method Critical 9.1
• CVE-2013-4717 SQL injection in n/a High 8.8
• CVE-2017-14635 Code injection in n/a High 8.8
• CVE-2023-5422 SSL Certificates are not checked for E-Mail Handling High 8.7
• CVE-2023-6254 Password is send back to client High 8.1

All Otrs Otrs vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-mx9p-p4m9-xg4c, UBUNTU-CVE-2021-21435.