CVE-2023-0934Public exploitNetwork attack vector

Browser data exposure via unsanitized site settings

Published Feb 21, 2023 · Updated Mar 12, 2025

Stored XSS in Apache Software Foundation Apache Answer before 1.0.5 allows remote authenticated users to run script through site settings. SiteGeneralReq accepted persistent HTML without sanitization; the fix adds a Bluemonday UGC sanitizer to names, descriptions, URLs, and email. Administrative access to general settings is required, and the payload runs when a browser renders the stored value, exposing browser-accessible data or actions.

CVSS severity6.3
Medium
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Apache Software Foundation Apache Answer before 1.0.5 allows remote authenticated users to run script through site settings. SiteGeneralReq accepted persistent HTML without sanitization; the fix adds a Bluemonday UGC sanitizer to names, descriptions, URLs, and email. Administrative access to general settings is required, and the payload runs when a browser renders the stored value, exposing browser-accessible data or actions.

The record

CVE
CVE-2023-0934
Published
Feb 21, 2023
Updated
Mar 12, 2025
Vendor
The Apache Software Foundation
Product
Apache Answer
Classifications
CWE-79, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 21, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 12, 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=unspecified <1.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache Answerversion=unspecified <1.0.5

Published CVSS scores

5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
6.3huntr.devCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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 exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1190Exploit Public-Facing Application

Public exploit references

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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