CVE-2023-6148Network attack vector

Stored XSS via unescaped API responses

Published Jan 9, 2024 · Updated Apr 17, 2025

Stored XSS in Qualys Policy Compliance Scanning Connector 1.0.5 and earlier lets remote authenticated users run script in a viewer's browser. The plugin places unescaped Qualys API responses on the job configuration page after a connectivity check to an attacker-controlled endpoint. Exploitation requires Jenkins login, job-configuration permission, control of the configured endpoint, and a user who views the stored response.

CVSS severity5.7
Medium
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Stored XSS in Qualys Policy Compliance Scanning Connector 1.0.5 and earlier lets remote authenticated users run script in a viewer's browser. The plugin places unescaped Qualys API responses on the job configuration page after a connectivity check to an attacker-controlled endpoint. Exploitation requires Jenkins login, job-configuration permission, control of the configured endpoint, and a user who views the stored response.

The record

CVE
CVE-2023-6148
Published
Jan 9, 2024
Updated
Apr 17, 2025
Vendor
Qualys
Product
Qualys Policy Compliance Scanning Connector
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 17, 2025Record 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=1.0.5 <=1.0.2 changes=[{"at":"1.0.6","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Qualys · Qualys Policy Compliance Scanning Connectorversion=1.0.5 <=1.0.2 changes=[{"at":"1.0.6","status":"unaffected"}]

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.7Qualys, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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