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Critical Apache Struts CVEs

17 CVEs, 11 exploited, 10 protected by Waratek

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Product: Struts✕
Overview 17 matches · 10 protected · 11 exploited · 5 CISA KEV · 12 public PoC · 12 EPSS ≥ 0.5
17matches 10protected58.8% 11exploited64.7% 5CISA KEV29.4% 12public PoC70.6% 12EPSS ≥ 0.570.6%
Protected by Waratek 10 58.8% Rule in development 0 0.0% Mitigation candidate 3 17.6% No exploit published 4 23.5%
Critical 17 100.0% High 0 0.0% Medium 0 0.0% Low 0 0.0% None 0 0.0% Unknown 0 0.0%
blocked by ARMR today 10 58.8% partly blocked 0 0.0% not blocked 7 41.2% not established 0 0.0% unrecorded 0 0.0%
Exploited 11 64.7% Working exploit published 1 5.9% Proof of concept only 0 0.0% Forecast only 0 0.0% No public exploit 5 29.4%
split by peak 4 / year
No exploit published: 4Mitigation candidate: 3Protected by Waratek: 10 Critical: 17 not blocked: 7blocked by ARMR today: 10 No public exploit: 5Working exploit published: 1Exploited: 11
20121 Protected by Waratek1 Critical1 blocked by ARMR today1 Exploited1 20131 Protected by Waratek1 Critical1 blocked by ARMR today1 Exploited1 20140 20150 20164 Mitigation candidate1 No exploit published3 Critical4 not blocked4 Working exploit published1 No public exploit3 20174 Protected by Waratek4 Critical4 blocked by ARMR today4 Exploited3 No public exploit1 20180 20191 Mitigation candidate1 Critical1 not blocked1 Exploited1 20202 Protected by Waratek2 Critical2 blocked by ARMR today2 Exploited2 20210 20221 Protected by Waratek1 Critical1 blocked by ARMR today1 Exploited1 20231 Mitigation candidate1 Critical1 not blocked1 Exploited1 20241 Protected by Waratek1 Critical1 blocked by ARMR today1 Exploited1 20250 20261 No exploit published1 Critical1 not blocked1 No public exploit1
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CVE Severity Published▾ Status Exploitation Description
CVE-2026-104711 Critical 2026-10-05 No exploit published No public exploit Improper neutralization of special elements used in an expression language statement ('Expression Language Injection') vulnerability in Apache Struts. If the application is configured to use the legacy RESTful action mapper, a crafted request can inject an OGNL expression that may lead to remote code execution. Struts 7 is affected only when the OGNL allowlist is disabled; it is enabled by default. Applications using the default action mapper, the restful2 mapper, or the Struts REST plugin are not affected. This issue affects Apache Struts: from 2.0.0 through 2.3.37, from 2.5.0 through 2.5.33, from 6.0.0 through 6.11.0, from 7.0.0 through 7.3.0. Users are recommended to upgrade to version 6.12.0 or 7.4.0, which fixes the issue.
CVE-2024-53677 Critical 2024-12-11 Protected by Waratek Exploited File upload logic in Apache Struts is flawed. An attacker can manipulate file upload params to enable paths traversal and under some circumstances this can lead to uploading a malicious file which can be used to perform Remote Code Execution. This issue affects Apache Struts: from 2.0.0 before 6.4.0. Users are recommended to upgrade to version 6.4.0 at least and migrate to the new file upload mechanism https://struts.apache.org/core-developers/file-upload . If you are not using an old file upload logic based on FileuploadInterceptor your application is safe. You can find more details in  https://cwiki.apache.org/confluence/display/WW/S2-067
CVE-2023-50164 Critical 2023-12-07 Mitigation candidate Exploited An attacker can manipulate file upload params to enable paths traversal and under some circumstances this can lead to uploading a malicious file which can be used to perform Remote Code Execution. Users are recommended to upgrade to versions Struts 2.5.33 or Struts 6.3.0.2 or greater to fix this issue.
CVE-2021-31805 Critical 2022-04-12 Protected by Waratek Exploited 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.
CVE-2020-17530 Critical 2020-12-11 Protected by Waratek Exploited 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.
CVE-2019-0230 Critical 2020-09-14 Protected by Waratek Exploited Apache Struts 2.0.0 to 2.5.20 forced double OGNL evaluation, when evaluated on raw user input in tag attributes, may lead to remote code execution.
CVE-2011-3923 Critical 2019-11-01 Mitigation candidate Exploited Apache Struts before 2.3.1.2 allows remote attackers to bypass security protections in the ParameterInterceptor class and execute arbitrary commands.
CVE-2017-12611 Critical 2017-09-20 Protected by Waratek Exploited In Apache Struts 2.0.0 through 2.3.33 and 2.5 through 2.5.10.1, using an unintentional expression in a Freemarker tag instead of string literals can lead to a RCE attack.
CVE-2016-6795 Critical 2017-09-20 Protected by Waratek No public exploit In the Convention plugin in Apache Struts 2.3.x before 2.3.31, and 2.5.x before 2.5.5, it is possible to prepare a special URL which will be used for path traversal and execution of arbitrary code on server side.
CVE-2017-9791 Critical 2017-07-10 Protected by Waratek Exploited The Struts 1 plugin in Apache Struts 2.1.x and 2.3.x might allow remote code execution via a malicious field value passed in a raw message to the ActionMessage.
CVE-2017-5638 Critical 2017-03-11 Protected by Waratek Exploited The Jakarta Multipart parser in Apache Struts 2 2.3.x before 2.3.32 and 2.5.x before 2.5.10.1 has incorrect exception handling and error-message generation during file-upload attempts, which allows remote attackers to execute arbitrary commands via a crafted Content-Type, Content-Disposition, or Content-Length HTTP header, as exploited in the wild in March 2017 with a Content-Type header containing a #cmd= string.
CVE-2016-4436 Critical 2016-10-03 No exploit published No public exploit Apache Struts 2 before 2.3.29 and 2.5.x before 2.5.1 allow attackers to have unspecified impact via vectors related to improper action name clean up.
CVE-2016-4438 Critical 2016-07-04 No exploit published No public exploit The REST plugin in Apache Struts 2 2.3.19 through 2.3.28.1 allows remote attackers to execute arbitrary code via a crafted expression.
CVE-2016-3087 Critical 2016-06-07 Mitigation candidate Working exploit published Apache Struts 2.3.19 to 2.3.20.2, 2.3.21 to 2.3.24.1, and 2.3.25 to 2.3.28, when Dynamic Method Invocation is enabled, allow remote attackers to execute arbitrary code via vectors related to an ! (exclamation mark) operator to the REST Plugin.
CVE-2016-3082 Critical 2016-04-26 No exploit published No public exploit XSLTResult in Apache Struts 2.x before 2.3.20.2, 2.3.24.x before 2.3.24.2, and 2.3.28.x before 2.3.28.1 allows remote attackers to execute arbitrary code via the stylesheet location parameter.
CVE-2013-2251 Critical 2013-07-20 Protected by Waratek Exploited Apache Struts 2.0.0 through 2.3.15 allows remote attackers to execute arbitrary OGNL expressions via a parameter with a crafted (1) action:, (2) redirect:, or (3) redirectAction: prefix.
CVE-2012-0391 Critical 2012-01-08 Protected by Waratek Exploited The ExceptionDelegator component in Apache Struts before 2.2.3.1 interprets parameter values as OGNL expressions during certain exception handling for mismatched data types of properties, which allows remote attackers to execute arbitrary Java code via a crafted parameter.