CVE-2018-19586

Severity: critical (CVSS 9.9 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2019-04-09 · updated 2026-06-17
Weakness: CWE-22

Description

Silverpeas 5.15 through 6.0.2 is affected by an authenticated Directory Traversal vulnerability that can be triggered during file uploads because core/webapi/upload/FileUploadData.java mishandles a StringUtil.java call. This vulnerability enables regular users to write arbitrary files on the underlying system with privileges of the user running the application. Especially, an attacker may leverage the vulnerability to write an executable JSP file in an exposed web directory to execute commands on the underlying system.

Affected products

Silverpeas: from 5.15 through 6.0.2

References

https://github.com/Silverpeas/Silverpeas-Core/blob/d8c3bbb0695a4907db013401bd16c6527e2b4f41/core-web/src/main/java/org/silverpeas/core/webapi/upload/FileUploadData.java#L89
https://www.bishopfox.com/news/2019/01/silverpeas-5-15-to-6-0-2-path-traversal/
https://github.com/Silverpeas/Silverpeas-Core/blob/d8c3bbb0695a4907db013401bd16c6527e2b4f41/core-web/src/main/java/org/silverpeas/core/webapi/upload/FileUploadData.java#L89
https://www.bishopfox.com/news/2019/01/silverpeas-5-15-to-6-0-2-path-traversal/

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