CVE-2026-28812: Use of impersonation in Apache Software Foundation Apache JSPWiki
UserManager lack of checks allows impersonation in Apache JSPWiki up to 2.12.3 which may allow attackers to escalate privileges. Users are recommended to upgrade to version 2.12.4 or newer which fixes this issue.
AI Analysis
Technical Summary
The vulnerability identified as CVE-2026-28812 affects Apache JSPWiki versions up to 2.12.3. It arises from insufficient validation in the UserManager component, permitting impersonation attacks. This can allow an attacker to escalate privileges within the application. The Apache Software Foundation has addressed this issue in version 2.12.4, recommending users upgrade to this or newer versions to mitigate the risk.
Potential Impact
Successful exploitation of this vulnerability can result in an attacker impersonating other users and escalating their privileges, potentially leading to full compromise of the affected Apache JSPWiki instance. The CVSS score of 9.8 reflects a critical impact on confidentiality, integrity, and availability with no required privileges or user interaction.
Mitigation Recommendations
Users should upgrade Apache JSPWiki to version 2.12.4 or later, as this version contains the official fix for the impersonation vulnerability. No other mitigation or temporary workaround is indicated. Patch status is confirmed fixed in 2.12.4.
CVE-2026-28812: Use of impersonation in Apache Software Foundation Apache JSPWiki
Description
UserManager lack of checks allows impersonation in Apache JSPWiki up to 2.12.3 which may allow attackers to escalate privileges. Users are recommended to upgrade to version 2.12.4 or newer which fixes this issue.
CVSS v3.1
Score 9.8critical
Affected software
Apache Software Foundation
Apache JSPWiki
pkg:maven/org.apache.jspwiki/jspwikiRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-28812 affects Apache JSPWiki versions up to 2.12.3. It arises from insufficient validation in the UserManager component, permitting impersonation attacks. This can allow an attacker to escalate privileges within the application. The Apache Software Foundation has addressed this issue in version 2.12.4, recommending users upgrade to this or newer versions to mitigate the risk.
Potential Impact
Successful exploitation of this vulnerability can result in an attacker impersonating other users and escalating their privileges, potentially leading to full compromise of the affected Apache JSPWiki instance. The CVSS score of 9.8 reflects a critical impact on confidentiality, integrity, and availability with no required privileges or user interaction.
Mitigation Recommendations
Users should upgrade Apache JSPWiki to version 2.12.4 or later, as this version contains the official fix for the impersonation vulnerability. No other mitigation or temporary workaround is indicated. Patch status is confirmed fixed in 2.12.4.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-03-03T15:01:12.543Z
- State
- PUBLISHED
Threat ID: 6a6b7a5f9c2644c7f8589059
Added to database: 07/30/2026, 16:22:55 UTC
Last enriched: 08/06/2026, 16:46:32 UTC
Last updated: 09/14/2026, 22:01:33 UTC
Views: 60
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