CVE-2020-11991
When using the StreamGenerator, the code parse a user-provided XML. A specially crafted XML,...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2020-11991- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-611
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2020-11991- Updated
- 2026-11-02
EUVDEUVD-2020-4311 No score
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.
- Record
EUVD-2020-4311- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-586v-g7r5-mhgp No score
When using the StreamGenerator, the code parse a user-provided XML. A specially crafted XML,...
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.
- Record
GHSA-586v-g7r5-mhgp- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Nuclei | Apache Cocoon 2.1.12 - XML Injection |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, Nuclei, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-11991 is a high vulnerability (CVSS 7.5) in Apache Cocoon, published September 11, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 72.5%, the 99th percentile. No source names a fixed version.