What’s Vulnerable › Vulnerabilities

CVE-2021-3312

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-10-08 · updated 2026-06-17
• Weakness: CWE-611

Description

An XML external entity (XXE) vulnerability in Alkacon OpenCms 11.0, 11.0.1 and 11.0.2 allows remote authenticated users with edit privileges to exfiltrate files from the server's file system by uploading a crafted SVG document.

Affected products

• Alkacon OpenCms: 11.0, 11.0.1, 11.0.2

References

• https://github.com/alkacon/opencms-core/issues/725
• https://github.com/alkacon/opencms-core/releases
• https://github.com/alkacon/opencms-core/issues/725
• https://github.com/alkacon/opencms-core/releases

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