CVE-2026-28813: Apache JSPWiki: JSPWiki vulnerable to JSON hijacking

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-30 · updated 2026-10-23
Weakness: CWE-352

Description

Apache JSPWiki, up to 2.12.3, is vulnerable to JSON Hijacking, which leads to csrf vulnerabilities. Users are recommended to upgrade to version 2.12.4, which fixes this issue.

Affected products

Apache Software Foundation Apache JSPWiki: before 2.12.4 — fixed in 2.12.4

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache JSPWiki 2.12.4. Check the vendor advisory for mitigations.

References

https://lists.apache.org/thread/56440mymwkxt1hf3j8hjpo41yco7gotv
http://www.openwall.com/lists/oss-security/2026/07/30/16

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