CVE-2018-25031Network attack vector

Phishing via remote definition URL override

Published Mar 11, 2022 · Updated Aug 5, 2024

URL configuration injection in SmartBear Swagger UI 4.1.2 and earlier allows remote attackers to display deceptive API definitions. The runtime accepts a url query parameter and loads that remote OpenAPI document into the trusted host page without distinguishing its origin. Exploitation requires a victim to open the crafted link and submit sensitive data through the rendered Try-it-out interface.

CVSS severity4.3
Medium
EPSS probability42.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

URL configuration injection in SmartBear Swagger UI 4.1.2 and earlier allows remote attackers to display deceptive API definitions. The runtime accepts a url query parameter and loads that remote OpenAPI document into the trusted host page without distinguishing its origin. Exploitation requires a victim to open the crafted link and submit sensitive data through the rendered Try-it-out interface.

The record

CVE
CVE-2018-25031
Published
Mar 11, 2022
Updated
Aug 5, 2024
Vendor
SmartBear
Product
Swagger UI
Classifications
CWE-20, CWE-922, CWE-918, T1566.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 11, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=4.1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SmartBear · Swagger UIversion=0 <=4.1.2

Published CVSS scores

4.3GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-922Insecure Storage of Sensitive Information
CWE-918Server-Side Request Forgery (SSRF)
T1566.002Spearphishing Link

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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