CVE-2015-5209

mediumpriority · track · 33EPSS 0.091 · 95 %ileEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
9.06% (95th) EPSS
CVSS 5 · medium
Is it mine?
71 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

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.

01

cvss

Technical severity, 0–10. One row per scoring source.

7.5
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9
v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6
v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · OSV
v3.06.9mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)
v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · FSTEC (BDU) RU
02

weaknesses

The CWE weakness classes this flaw belongs to.

03

affected products (71)

Products and version ranges known to be affected.

showing 20 of 71
04

advisories (1)

Vendor and ecosystem advisories describing this.

  • GHSA-4qgj-9mvg-3929Special top object can be used to access Struts' internals2022-05-14ghsa · osvUS

    ValueStack defines special top object which represents root of execution context. It can be used to manipulate Struts' internals or can be used to affect container's settings. Applying better regex which includes pattern to exclude request parameters trying to use top object. This issue was patched in Struts 2.3.24.1.

05

also known as (4)

Other names and identifiers for this entity.

06

sources

Which sources assert this record, and when.

published 2017-08-29modified 2026-06-17
08

references (11)

External citations — patches, advisories, analysis.

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