CVE-2020-17530

Apache Software Foundation Apache Struts

Published 11 Dec 2020 · updated 17 Jun 2026 · Analyzed

9.8 Critical · CVSS 3.1, NVD

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 3 Nov 2021, with a remediation deadline of 3 May 2022 for US federal agencies.

Required action: Apply updates per vendor instructions.

Description

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.

References

jvn.jp/en/jp/JVN43969166/index.html · Third Party Advisory
packetstormsecurity.com/files/160721/Apache-Struts-2-Forced-Multi-OGNL-Evaluation.html · Third Party Advisory, VDB Entry
www.openwall.com/lists/oss-security/2022/04/12/6 · Mailing List, Third Party Advisory
cwiki.apache.org/confluence/display/WW/S2-061 · Vendor Advisory
security.netapp.com/advisory/ntap-20210115-0005/ · Patch, Third Party Advisory
www.oracle.com//security-alerts/cpujul2021.html · Patch, Third Party Advisory
www.oracle.com/security-alerts/cpuApr2021.html · Patch, Third Party Advisory
www.oracle.com/security-alerts/cpuapr2022.html · Third Party Advisory
www.oracle.com/security-alerts/cpujan2021.html · Patch, Third Party Advisory
www.oracle.com/security-alerts/cpujan2022.html · Patch, Third Party Advisory
www.oracle.com/security-alerts/cpuoct2021.html · Patch, Third Party Advisory
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-17530 · US Government Resource