CVE-2026-28812
Apache JSPWiki: UserManager does not sanity-check user database at startup
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.
INFO
Published Date :
July 30, 2026, 4:17 p.m.
Last Modified :
July 30, 2026, 5:16 p.m.
Remotely Exploit :
No
Source :
[email protected]
Solution
- Upgrade Apache JSPWiki to version 2.12.4.
- Ensure the latest version is running.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-28812.
| URL | Resource |
|---|---|
| https://lists.apache.org/thread/n3m666d6t6871dldvz3ct49ooqkbgw2p | |
| http://www.openwall.com/lists/oss-security/2026/07/30/15 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-28812 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-28812
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-28812 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-28812 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Jul. 30, 2026
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2026/07/30/15 -
New CVE Received by [email protected]
Jul. 30, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Apache Software Foundation', 'product': 'Apache JSPWiki', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2.12.4', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] Added 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. Added Reference https://lists.apache.org/thread/n3m666d6t6871dldvz3ct49ooqkbgw2p