CWE-639: Authorization Bypass Through User-Controlled Key in web services in Progress Sitefinity
Published Jun 2, 2026
8.8
HIGHCVSS 3.1
EPSS 0.55%
Description
CWE-639: Authorization Bypass Through User-Controlled Key in web services in Progress Sitefinity 15.2.x before 15.2.8441, 15.3.x before 15.3.8531, and 15.4.x before 15.4.8630 allows a remote authenticated attacker to modify account properties of other users, potentially leading to account compromise. Successful exploitation requires knowledge of values that are not generally exposed to low-privileged users.
Affected products
-
- Version 15.2.8400StatusaffectedConstraints<15.2.8441
- Version 15.3.8500StatusaffectedConstraints<15.3.8531
- Version 15.4.8600StatusaffectedConstraints<15.4.8630
- 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 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Progress Software | Sitefinity | unaffected |
|
- ≥ 15.2.8400 · < 15.2.8441
- ≥ 15.3.8500 · < 15.3.8531
- ≥ 15.4.8600 · < 15.4.8630
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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
NoneAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Jun 2, 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
Jun–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 | 0.55% (0.00546) | 43.80th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.31% (0.00310) | 22.42th | v5 (v2026.06.15) |
| Jun 3, 2026 | 0.04% (0.00045) | 14.06th | v4 (v2025.03.14) |
References (1)
- https://community.progress.com/s/article/Sitefinity-Security-Advisory-for-Addressing-Security-Vulnerabilities-CVE-2026-7312-CVE-2026-7198-CVE-2026-7195-CVE-2026-7201-CVE-2026-7313-May-2026 vendor-advisoryVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://community.progress.com/s/article/Sitefinity-Security-Advisory-for-Addressing-Security-Vulnerabilities-CVE-2026-7312-CVE-2026-7198-CVE-2026-7195-CVE-2026-7201-CVE-2026-7313-May-2026 | vendor-advisoryVendor Advisory |
Change history (0)
No recorded changes yet.