EverSync 0.5 Arbitrary File Download via files Directory
Published Mar 6, 2026
8.7
HIGHCVSS 4.0
EPSS 0.27%
Description
EverSync 0.5 contains an arbitrary file download vulnerability that allows unauthenticated attackers to access sensitive files by requesting them directly from the files directory. Attackers can send GET requests to the files directory to download database files like db.sq3 containing application data and credentials.
Affected products
-
- Version 0.5StatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Phpmassmail | EverSync | 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:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
1 other source (NVD) ▾
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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
YesTechnical Impact
PartialDecision
n/aAssessed Mar 9, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
Mar–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 1, 2026 | 0.27% (0.00266) | 16.73th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.27% (0.00266) | 17.72th | v5 (v2026.06.15) |
| Mar 7, 2026 | 0.06% (0.00058) | 17.95th | v4 (v2025.03.14) |
References (2)
- https://www.exploit-db.com/exploits/45868 exploit
- https://www.vulncheck.com/advisories/eversync-arbitrary-file-download-via-files-directory third-party-advisory
| Link | Providers | Tags |
|---|---|---|
| https://www.exploit-db.com/exploits/45868 | exploit | |
| https://www.vulncheck.com/advisories/eversync-arbitrary-file-download-via-files-directory | third-party-advisory |
Change history (0)
No recorded changes yet.