What’s Vulnerable › Vulnerabilities

CVE-2021-33491

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-11-22 · updated 2026-06-17
• Weakness: CWE-22

Description

OX App Suite through 7.10.5 allows Directory Traversal via ../ in an OOXML or ODF ZIP archive, because of the mishandling of relative paths in mail addresses in conjunction with auto-configuration DNS records.

Affected products

• Open-Xchange GmbH OX App Suite: through 7.10.5

References

• http://packetstormsecurity.com/files/165028/OX-App-Suite-Ox-Documents-7.10.x-XSS-Code-Injection-Traversal.html
• https://open-xchange.com
• https://seclists.org/fulldisclosure/2021/Nov/42
• http://packetstormsecurity.com/files/165028/OX-App-Suite-Ox-Documents-7.10.x-XSS-Code-Injection-Traversal.html
• https://open-xchange.com
• https://seclists.org/fulldisclosure/2021/Nov/42

Get alerted when CVE-2021-33491 or the next vulnerability affects your stack