PT-2026-29633 · Ci4Ms · Ci4Ms
Bugmithlegend
+1
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Published
2026-04-01
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Updated
2026-04-03
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CVE-2026-34569
CVSS v3.1
9.9
Critical
| Vector | AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
CI4MS versions prior to 0.31.0.0
Description
The application does not properly sanitize user-controlled input when creating or editing blog categories. An attacker can inject a malicious JavaScript payload into the category title field, which is then stored server-side. This stored payload is later rendered unsafely across public-facing blog category pages, administrative interfaces, and blog post views without proper output encoding, leading to stored cross-site scripting (XSS). The affected functionality includes blog category creation and editing, as well as the storage and retrieval logic for blog categories. The attack involves creating or editing a blog category title with an XSS payload, which then executes automatically when the category title is rendered. The affected API endpoints are
/backend/blogs/categories/ and /blog/{id}.Recommendations
Update to version 0.31.0.0 or later to address this issue. Avoid unsafe DOM manipulation methods such as
.html() and innerHTML. Implement HTML entity encoding on all user-controlled data before rendering it in the browser. Implement input sanitization to ensure all user-supplied input is properly sanitized before processing or output.Fix
LPE
XSS
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Weakness Enumeration
Related Identifiers
Affected Products
Ci4Ms