Search/CVE-2021-43742
● CVE — Medium

CVE-2021-43742

CMSimple 5.4 is vulnerable to Cross Site Scripting (XSS) via the file upload feature.

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CVSS v3.1
5.4 MEDIUM
EPSS
0.57%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
EPSS Trend
Aug 16, 2026 → Sep 3, 2026
● 0.01pp
0.56% → 0.57% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionREQUIRED
ScopeCHANGED
ConfidentialityLOW
IntegrityLOW
AvailabilityNONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Connections
2 relationships
Timeline
disclosure → media coverage
Apr 13, 2022
Disclosure — published as a CVE record. · last revised by NVD Nov 21, 2024