Apache JSPWiki up to 2.12.3 Markdown Renderer cross site scripting

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 3.4 | $0-$5k | 1.29+ |
Summary
A vulnerability categorized as problematic has been discovered in Apache JSPWiki up to 2.12.3. This affects an unknown function of the component Markdown Renderer. Such manipulation leads to cross site scripting. This vulnerability is traded as CVE-2026-48910. The attack may be launched remotely. There is no exploit available.
Details
A vulnerability was found in Apache JSPWiki up to 2.12.3 and classified as problematic. Affected by this issue is an unknown functionality of the component Markdown Renderer. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:
A carefully crafted editing request could trigger an XSS vulnerability on Apache JSPWiki when parsing errors on the markdown renderer, which could allow the attacker to execute javascript in the victim's browser and get some sensitive information about the victim. This issue affects Apache JSPWiki: through 2.12.3. Users are recommended to upgrade to version 2.12.4, which fixes the issue.
The advisory is available at lists.apache.org. This vulnerability is handled as CVE-2026-48910 since 05/26/2026. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/30/2026). This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.
Upgrading to version 2.12.4 eliminates this vulnerability.
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Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.apache.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 3.5VulDB Meta Temp Score: 3.4
VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Cross site scriptingCWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Upgrade: JSPWiki 2.12.4
Timeline
05/26/2026 CVE reserved07/30/2026 Advisory disclosed
07/30/2026 VulDB entry created
07/30/2026 VulDB entry last update
Sources
Vendor: apache.orgAdvisory: lists.apache.org
Status: Confirmed
CVE: CVE-2026-48910 (🔒)
GCVE (CVE): GCVE-0-2026-48910
GCVE (VulDB): GCVE-100-384854
Entry
Created: 07/30/2026 18:32Changes: 07/30/2026 18:32 (55)
Complete: 🔍
Cache ID: 216::103
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