CVE-2018-1327

The Apache Struts REST Plugin is using XStream library which is vulnerable and allow perform a DoS attack when using a malicious request with specially crafted XML payload. Upgrade to the Apache Struts version 2.5.16 and switch to an optional Jackson XML handler as described here http://struts.apache.org/plugins/rest/#custom-contenttypehandlers. Another option is to implement a custom XML handler based on the Jackson XML handler from the Apache Struts 2.5.16.

Published: 2018-03-27 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-1327 is rated Moderate Risk (62/100): CVSS High severity, with high exploitation likelihood (EPSS 6.22%, 91th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-1327

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-04 6.00% 6.22% +0.22%
2 2026-02-13 3.70% 6.00% +2.31%
3 2026-01-28 — 3.70% —

Full EPSS history (18 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-1327

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2018-1327

GitHub Security Advisory for CVE-2018-1327

GHSA-38cr-2ph5-frr9 · Severity: high · Ecosystem: maven — Apache Struts REST Plugin can potentially allow a DoS attack

OS Trackers for CVE-2018-1327

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2018-1327
ubuntu medium CVE-2018-1327 medium priority: Ubuntu including 1 source packages (libstruts1.2-java), 7 status rows across 7 suites (artful, bionic, cosmic, disco, trusty, upstream, xenial): DNE 6, needs-triage 1. https://ubuntu.com/security/CVE-2018-1327

Affected software / configurations for CVE-2018-1327

Vendor Product Version Raw CPE
apache struts >= 2.1.1, <= 2.5.14.1 cpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*

References for CVE-2018-1327

cvelogic Threat Intelligence