Quick answers
- Is CVE-2026-48910 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-48910 being exploited in the wild.
- How severe is CVE-2026-48910?
- Medium severity, with a CVSS score of 6.5, published 30 July 2026.
- Which products and versions are affected?
- Apache Software Foundation JSPWiki up to 2.12.3.
- Is there a fix for CVE-2026-48910?
- A patch was published on 2026-07-30: Version 2.12.4 released to address the vulnerability Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-48910 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-48910?
- Check whether you run Apache Software Foundation JSPWiki at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A Cross-Site Scripting (XSS) vulnerability exists in Apache JSPWiki versions through 2.12.3. The flaw is located within the markdown renderer's error handling logic. When the renderer encounters specific parsing errors triggered by a crafted editing request, it fails to properly neutralize script-related HTML tags (CWE-80). An attacker can exploit this by tricking a user into viewing or processing a malicious request, leading to the execution of arbitrary JavaScript in the context of the victim's session. This can result in the theft of sensitive session information or unauthorized actions. The issue is resolved in version 2.12.4.
Affected products
- Apache Software Foundation JSPWiki up to 2.12.3
Timeline
- 2026-07-30: advisory: Initial disclosure by Apache Software Foundation
- 2026-07-30: patched: Version 2.12.4 released to address the vulnerability