CVE-2017-12611

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.

Affected

Apache Software Foundation · Apache Struts

CVSS v3.0 NVD

9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

87.12% chance of exploitation in the next 30 days, 100th percentile

Nuclei

critical · CWE-20

Published

2017-09-20

Updated

2024-09-17

Proof-of-concept exploits (3)

• brianwrf/S2-053-CVE-2017-1261137★ · 2017-09-08
• tcetin704/CVE-2017-126110★ · 2025-10-19
• zeynepsilao/CVE-2017-12611_Exploit0★ · 2025-09-24

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2017/CVE-2017-12611.yaml

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/44556

Exploit collections (1)

• CVE-2017-12611.yamlzan8in/afrog

Security advisories

• https://struts.apache.org/docs/s2-053.html
• http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-003.txt
• http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.html
• http://www.securityfocus.com/bid/100829
• https://kb.netapp.com/support/s/article/ka51A000000CgttQAC/NTAP-20170911-0001
• advisories/GHSA-8fx9-5hx8-crhm

References

• CVE Record
• NVD entry

Related

• CVE-2016-4010
• CVE-2017-7494
• CVE-2017-8917
• CVE-2018-11761
• CVE-2018-11776
• CVE-2018-11788