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» CVE-2023-1303
A vulnerability was found in UCMS 1.6 and classified as critical. This issue affects some unknown processing of the file sadmin/fileedit.php of the component System File Management Module. The manipulation of the argument file leads to unrestricted upload. The attack may be initiated remotely. The associated identifier of this vulnerability is VDB-222683.
NVD Status： Modified ，CVE State: published
Threat Intelligence & Risk Assessment for CVE-2023-1303
Conclusion & alert: CVE-2023-1303 is rated Moderate Risk (48.9/100) : CVSS Medium severity, with medium exploitation likelihood (EPSS 0.52%).Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
Exploit prediction scoring system (EPSS) score for CVE-2023-1303
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
#
Date
Old EPSS score
New EPSS score
Delta (New - Old)
1
2026-03-11
0.08%
0.52%
+0.44%
2
2025-11-21
0.35%
0.08%
-0.27%
3
2025-11-18
—
0.35%
—
Full EPSS history
(18 records total)
Common vulnerability scoring system (CVSS) metrics for CVE-2023-1303
CVSS metrics for this CVE.
Base score
Version
Severity
Vector
Exploitability
Impact
Score source
6.3
3.1
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
2.8
3.4
[email protected]
9.8
3.1
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
3.9
5.9
[email protected]
6.5
2.0
MEDIUM
AV:N/AC:L/Au:S/C:P/I:P/A:P
Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
8.0
6.4
[email protected]
Weakness enumeration for CVE-2023-1303
Affected software / configurations for CVE-2023-1303
Vendor
Product
Version
Raw CPE
ucms_project
ucms
1.6
cpe:2.3:a:ucms_project:ucms:1.6:*:*:*:*:*:*:*
References for CVE-2023-1303
cvelogic
Threat Intelligence