Arbitrary Wiki Markup Rendering in Apache JSPWiki by Apache
CVE-2026-28814

7.5HIGH

Key Information:

Vendor

Apache
Status
Apache Jspwiki
Vendor
CVE Published:
30 July 2026

What is CVE-2026-28814?

The lack of proper authentication in Apache JSPWiki versions up to 2.12.3 exposes the application to arbitrary Wiki Markup rendering. This vulnerability potentially allows attackers to manipulate the application and access sensitive data stored in JSPWiki variables. Users are strongly advised to upgrade to version 2.12.4 or 3.0.0 to mitigate this risk and enhance their security posture.

Affected Version(s)

Apache JSPWiki 0 < 2.12.4

References

https://lists.apache.org/thread/8vv0311bvrrqxsyn913pcwf7p...
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Miguel Regala (Fisher) - Hadrian.io
.