CVE-2026-55081: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in dhis2 dhis2-core
DHIS2 is a flexible information system for data capture, management, validation, analytics and visualization. The DHIS2 OpenAPI HTML endpoint reflected values from the `scope` query parameter into the generated HTML document without sufficient sanitization. A crafted `scope` value could be rendered as active HTML or JavaScript in the OpenAPI documentation page. An attacker able to get a user to open a crafted OpenAPI HTML URL could execute JavaScript in that user's browser in the DHIS2 origin. Affected versions: DHIS2 2.42 and 2.43 before the 2026-06-09 security patch releases, and the development branch for DHIS2 2.44 before the fix was merged. Patched in 2.42.5.1, 2.43.0.1, the 2.42 and 2.43 line branches, and the 2.44 development branch.
AI Analysis
Technical Summary
CVE-2026-55081 is a CWE-79 cross-site scripting vulnerability in the dhis2-core product. The OpenAPI HTML endpoint reflects the 'scope' query parameter into the generated HTML document without sufficient input neutralization. This allows an attacker to craft a malicious URL that, when visited by a user, executes arbitrary JavaScript in the user's browser within the DHIS2 origin. The vulnerability affects DHIS2 versions 2.42, 2.43, and 2.44 prior to the 2026-06-09 security patches. Official patches are available in versions 2.42.5.1, 2.43.0.1, and the fixed 2.44 development branch.
Potential Impact
Successful exploitation allows execution of arbitrary JavaScript in the context of the DHIS2 web application, potentially leading to session hijacking, unauthorized actions, or data exposure within the affected user's browser session. The vulnerability requires user interaction (opening a crafted URL) and has a CVSS 4.0 base score of 7.3 (high severity).
Mitigation Recommendations
Apply the official security patches released on 2026-06-09 or later: upgrade affected DHIS2 instances to versions 2.42.5.1, 2.43.0.1, or the updated 2.44 development branch where the fix is merged. No other mitigation guidance is provided or required beyond applying these patches.
CVE-2026-55081: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in dhis2 dhis2-core
Description
DHIS2 is a flexible information system for data capture, management, validation, analytics and visualization. The DHIS2 OpenAPI HTML endpoint reflected values from the `scope` query parameter into the generated HTML document without sufficient sanitization. A crafted `scope` value could be rendered as active HTML or JavaScript in the OpenAPI documentation page. An attacker able to get a user to open a crafted OpenAPI HTML URL could execute JavaScript in that user's browser in the DHIS2 origin. Affected versions: DHIS2 2.42 and 2.43 before the 2026-06-09 security patch releases, and the development branch for DHIS2 2.44 before the fix was merged. Patched in 2.42.5.1, 2.43.0.1, the 2.42 and 2.43 line branches, and the 2.44 development branch.
CVSS v4.0
Score 7.3high
Affected software
pkg:github/dhis2/dhis2-coreRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-55081 is a CWE-79 cross-site scripting vulnerability in the dhis2-core product. The OpenAPI HTML endpoint reflects the 'scope' query parameter into the generated HTML document without sufficient input neutralization. This allows an attacker to craft a malicious URL that, when visited by a user, executes arbitrary JavaScript in the user's browser within the DHIS2 origin. The vulnerability affects DHIS2 versions 2.42, 2.43, and 2.44 prior to the 2026-06-09 security patches. Official patches are available in versions 2.42.5.1, 2.43.0.1, and the fixed 2.44 development branch.
Potential Impact
Successful exploitation allows execution of arbitrary JavaScript in the context of the DHIS2 web application, potentially leading to session hijacking, unauthorized actions, or data exposure within the affected user's browser session. The vulnerability requires user interaction (opening a crafted URL) and has a CVSS 4.0 base score of 7.3 (high severity).
Mitigation Recommendations
Apply the official security patches released on 2026-06-09 or later: upgrade affected DHIS2 instances to versions 2.42.5.1, 2.43.0.1, or the updated 2.44 development branch where the fix is merged. No other mitigation guidance is provided or required beyond applying these patches.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-16T14:33:35.711Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a5fbd912a4a8d5989977fe6
Added to database: 07/21/2026, 18:42:25 UTC
Last enriched: 07/21/2026, 18:57:18 UTC
Last updated: 07/21/2026, 21:10:32 UTC
Views: 6
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