PatchTheCEVCVE-2026-28814: Arbitrary Wiki Markup rendering due to lack of authentication in Apache JSPWiki up to 2.12.3 allows attacker t
49
This month
HIGH 7.5REMOTEWATCHLISTUPGRADE
CVE-2026-28814 is a high-severity flaw (CVSS 7.5) affecting jspwiki. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Arbitrary Wiki Markup rendering due to lack of authentication in Apache JSPWiki up to 2.12.3 allows attacker to obtain sensitive data stored in JSPWiki variables. Users are recommended to upgrade to version 2.12.4 or 3.0.0, which fixes this issue.
Why this priority
- High severity
- Remotely exploitable, no login, no user action
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.7% (top 49%) |
| CISA exploited list | No |
| Weakness | CWE-306 |
| Published | 2026-07-30 |
| Last modified | 2026-10-23 |
Publisher (CNA): Apache Software Foundation · Vendor: apache
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
apache jspwiki UPGRADE
Affected: < 2.12.4
Fixed in: 2.12.4
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy jspwiki || rpm -q jspwiki || jspwiki --version
2. UPGRADE to 2.12.4 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade jspwiki
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade jspwiki
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Exact fixes by distribution
Fedora 46 · python-fontconfig · FIXED · 0.6.3-1.fc46 · FEDORA-2026-f92ca8b01f · source
sudo dnf upgrade --advisory=FEDORA-2026-f92ca8b01f
Fedora ELN · valgrind · FIXED · 3.28.0-1.eln159 · FEDORA-2026-c593ef1d15 · source
sudo dnf upgrade --advisory=FEDORA-2026-c593ef1d15
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Related CVEs
- CVE-2026-28812 CRITICAL 9.8 UPGRADE UserManager lack of checks allows impersonation in Apache JSPWiki up to 2.12.3 which may allow attackers to es
- CVE-2026-28811 HIGH 7.5 UPGRADE Debug Messages Revealing Unnecessary Information in Apache JSPWiki up to 2.12.3. Users are recommended to upgr
- CVE-2026-28813 HIGH 8.8 UPGRADE Apache JSPWiki, up to 2.12.3, is vulnerable to JSON Hijacking, which leads to csrf vulnerabilities. Users are
- CVE-2026-48910 MEDIUM 6.5 UPGRADE A carefully crafted editing request could trigger an XSS vulnerability on Apache JSPWiki when parsing errors