ci4ms Backup::restore is vulnerable to Zip Slip leading to RCE
Published May 7, 2026
9.4
CRITICALCVSS 4.0
EPSS 0.72%
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 0.31.5.0, ci4ms Backup::restore extracts user uploaded ZIP archives without validating entry names, allowing an authenticated backend user with the backup create permission to write files to arbitrary filesystem locations (Zip Slip) and achieve remote code execution by dropping a PHP file under the public web root. This issue has been patched in version 0.31.5.0.
Affected products
-
- Version < 0.31.5.0StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Ci4-Cms-Erp | Ci4ms | n/a |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
1 other source (NVD) ▾
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed May 7, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
May–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.72% (0.00724) | 52.41th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.53% (0.00528) | 40.27th | v5 (v2026.06.15) |
| May 7, 2026 | 0.42% (0.00416) | 61.73th | v4 (v2025.03.14) |
References (4)
- https://github.com/advisories/GHSA-xp9f-pvvc-57p4 Advisory
- https://github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.5.0 x_refsource_MISC
- https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-xp9f-pvvc-57p4 exploitx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2026-41202
| Link | Providers | Tags |
|---|---|---|
| https://github.com/advisories/GHSA-xp9f-pvvc-57p4 | Advisory | |
| https://github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.5.0 | x_refsource_MISC | |
| https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-xp9f-pvvc-57p4 | exploitx_refsource_CONFIRM | |
| https://nvd.nist.gov/vuln/detail/CVE-2026-41202 |
Change history (0)
No recorded changes yet.