CVE-2015-5209

HIGHNVD 7.57.5—

7.5

Apache Struts 2.x before 2.3.24.1 allows remote attackers to manipulate Struts internals, alter user sessions, or affect container settings via vectors involving a top object.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 80.4%
KEV: Not listed

Published

August 29, 2017

Last Modified

May 13, 2026

References (8)

secalert@redhathttp://www.securityfocus.com/bid/82550
secalert@redhathttp://www.securitytracker.com/id/1033908
secalert@redhathttps://security.netapp.com/advisory/ntap-20180629-0002/
secalert@redhathttps://struts.apache.org/docs/s2-026.html
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/82550
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1033908
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20180629-0002/
af854a3a-2127-422b-91ae-364da2661108https://struts.apache.org/docs/s2-026.html

Affected Packages

(1 across 1 ecosystem)

Maven(1)

Package	Vulnerable range	Fixed in	Dependents
org.apache.struts:struts2-core	2.0.11 ... 2.3.8 (42 versions)	2.3.24.1	—

Data Freshness Timeline

(refreshed 10× in last 7d / 17× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-24 16:43 UTCepss_batch
2026-05-23 00:10 UTCEG score recompute
2026-05-22 21:15 UTCepss_batch
2026-05-22 10:19 UTCEG score recompute
2026-05-21 22:40 UTCepss_batch
2026-05-20 22:37 UTCepss_batch
2026-05-20 22:37 UTCepss_batch
2026-05-20 11:21 UTCepss_batch
2026-05-20 11:21 UTCepss_batch
2026-05-20 11:21 UTCepss_batch
2026-05-18 21:30 UTCepss_batch
2026-05-18 21:30 UTCepss_batch

Frequently asked(5)

What is CVE-2015-5209?

CVE-2015-5209 is a high vulnerability published on August 29, 2017. Apache Struts 2.x before 2.3.24.1 allows remote attackers to manipulate Struts internals, alter user sessions, or affect container settings via vectors involving a top object.

When was CVE-2015-5209 disclosed?

CVE-2015-5209 was first published in the National Vulnerability Database on August 29, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2015-5209 actively exploited?

CVE-2015-5209 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 80.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2015-5209?

CVE-2015-5209 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2015-5209?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-5209, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2015-5209

📅 Published

🔄 Last Modified

🔗 References (8)