CVE-2026-28813Network attack vectorHinoki check available

User-assisted session misuse via JSON hijacking

Published Jul 30, 2026 · Updated Jul 30, 2026

Cross-site request forgery in Apache JSPWiki 2.12.3 and earlier allows remote attackers to misuse an authenticated user's wiki session. Apache has disclosed only that JSON hijacking leads to the request forgery and has not identified the affected endpoint or incorrect response handling. Exploitation requires user interaction; the public record does not specify which session actions become available or the resulting data and service effects.

CVSS severity8.8
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
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Summary

What happened

Cross-site request forgery in Apache JSPWiki 2.12.3 and earlier allows remote attackers to misuse an authenticated user's wiki session. Apache has disclosed only that JSON hijacking leads to the request forgery and has not identified the affected endpoint or incorrect response handling. Exploitation requires user interaction; the public record does not specify which session actions become available or the resulting data and service effects.

The record

CVE
CVE-2026-28813
Published
Jul 30, 2026
Updated
Jul 30, 2026
Vendor
The Apache Software Foundation
Product
Apache JSPWiki
Classifications
CWE-352, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 30, 2026Record 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 <2.12.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache JSPWikiversion=0 <2.12.4

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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.

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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 exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1189Drive-by Compromise

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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