What’s Vulnerable › Vulnerabilities

CVE-2020-11991

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 72.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-09-11 · updated 2026-06-17
• Weakness: CWE-611

Description

When using the StreamGenerator, the code parse a user-provided XML. A specially crafted XML, including external system entities, could be used to access any file on the server system.

Affected products

• Apache Software Foundation Apache Cocoon: from 2.1 through 2.1.12

References

• https://lists.apache.org/thread.html/r77add973ea521185e1a90aca00ba9dae7caa8d8b944d92421702bb54%40%3Cusers.cocoon.apache.org%3E
• https://lists.apache.org/thread.html/r77add973ea521185e1a90aca00ba9dae7caa8d8b944d92421702bb54%40%3Cusers.cocoon.apache.org%3E

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