CVE-2026-34569

CRITICAL
INFO Priority: 0.03 BB Relevance: 58/100
Published: 2026-04-01 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity Conf. Impact Integ. Impact Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: Required
S: Changed
C: High
I: High
A: High

Description

CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to version 0.31.0.0, the application fails to 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). This issue has been patched in version 0.31.0.0.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
ci4-cms-erp ci4ms < 0.31.0.0

Bug Bounty Relevance

58 / 100
✓ Network accessible
✓ Low complexity

CVSS Score

9.0 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

EPSS — Exploitation Probability

0.33%
Raw Score 0.003300
Percentile 26.1%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00330
2026-10-28
0.00324

Intelligence Sources

nvd ref →