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Attacker Value
Very High

CVE-2020-17530

Disclosure Date: December 11, 2020 (last updated October 07, 2023)
Forced OGNL evaluation, when evaluated on raw user input in tag attributes, may lead to remote code execution. Affected software : Apache Struts 2.0.0 - Struts 2.5.25.
Attacker Value
Unknown

CVE-2021-31805

Disclosure Date: April 12, 2022 (last updated October 07, 2023)
The fix issued for CVE-2020-17530 was incomplete. So from Apache Struts 2.0.0 to 2.5.29, still some of the tag’s attributes could perform a double evaluation if a developer applied forced OGNL evaluation by using the %{...} syntax. Using forced OGNL evaluation on untrusted user input can lead to a Remote Code Execution and security degradation.