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Fencer Intel
high 7.5

CVE-2015-1831 json

Incomplete exclude pattern in Apache Struts

published 11y ago modified 4mo ago also GHSA-q2cg-xf9p-h457 , EUVD-2022-4860

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.3%
EPSS 6.3% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

The default exclude patterns (excludeParams) in Apache Struts 2.3.20 allow remote attackers to "compromise internal state of an application" via unspecified vectors.

Patch / fix

  • maven org.apache.struts:struts2-core 2.3.20.1
  • maven org.apache.struts.xwork:xwork-core 2.3.20.1

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-1831 updated cvss 5.8

struts2: incorrect default exclude patterns

  • Red Hat Enterprise Linux 5 struts
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

6.32% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected packages

ecosystem package affected fixed in
maven org.apache.struts:struts2-core
>=2.0.0, <2.3.20.1
2.3.20.1
maven org.apache.struts.xwork:xwork-core
>=2.0.0, <2.3.20.1
2.3.20.1

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.