CVE-2020-17530 — Apache Struts Remote Code Execution Vulnerability
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.
Published
2020-12-11T01:11:04.000Z
Last modified
2025-10-21T23:35:31.563Z
CISA KEV — Actively Exploited
01What is this vulnerability?
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.
02Affected products
| Vendor | Product | Versions |
|---|
| Apache Software Foundation | Apache Struts | Struts 2.0.0 - Struts 2.5.25 |
03Active exploitation status
Yes — actively exploited. Added to the CISA KEV catalog on 2021-11-03. Ransomware use: Unknown.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:
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07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2020-12-11T01:11:04.000Z
- Last modified: 2025-10-21T23:35:31.563Z
- Added to CISA KEV: 2021-11-03
- BOD 22-01 due: 2022-05-03
09References
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