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Vulnerability record · CVE-2026-28812 · published 30 July 2026

CVE-2026-28812: Apache jspwiki authentication bypass by spoofing vulnerability

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.

9.8 CVSS 3.1 Critical EPSS 0.69% · top 49.1% CWE-290 · Authentication bypass by spoofing
9.8CVSS 3.1 base score
0.69%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
5 Aug 2026Last modified by NVD

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lists.apache.org/thread/n3m666d6t6871dldvz3ct49ooqkbgw2p Mailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2026/07/30/15 Mailing ListThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-28812), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.