CVE-2022-28730Public exploitNetwork attack vector

Reflected XSS via unsanitized Denounce preview output

Published Aug 4, 2022 · Updated Aug 3, 2024

Reflected XSS in Apache JSPWiki 2.11.2 and earlier allows remote attackers to run JavaScript in a victim's browser via a crafted request. AJAXPreview.jsp renders Denounce plugin output containing attacker-supplied URLs without sufficient sanitization, reflecting executable markup into the response. Exploitation requires an authenticated administrator to open the crafted request; script execution can read browser-accessible sensitive data or perform actions in that session.

CVSS severity6.1
Medium
EPSS probability85.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Apache JSPWiki 2.11.2 and earlier allows remote attackers to run JavaScript in a victim's browser via a crafted request. AJAXPreview.jsp renders Denounce plugin output containing attacker-supplied URLs without sufficient sanitization, reflecting executable markup into the response. Exploitation requires an authenticated administrator to open the crafted request; script execution can read browser-accessible sensitive data or perform actions in that session.

The record

CVE
CVE-2022-28730
Published
Aug 4, 2022
Updated
Aug 3, 2024
Vendor
The Apache Software Foundation
Product
Apache JSPWiki
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 4, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=Apache JSPWiki <=Apache JSPWiki up to 2.11.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache JSPWikiversion=Apache JSPWiki <=Apache JSPWiki up to 2.11.2

Published CVSS scores

6.1NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.4STAR LabsCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

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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