CVSS v3
9.8
CRITICAL
EPSS Score
94.0%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
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.
Active exploitation of CVE-2021-31805 has not been confirmed. The EPSS score is 94.0%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2021-31805 has a CVSS v3 base score of 9.8 (CRITICAL severity).
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Ranked by exploit probability (EPSS).