CVE-2020-28339
CVSS v3
8.8
HIGH
EPSS Score
1.9 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
The usc-e-shop (aka Collne Welcart e-Commerce) plugin before 1.9.36 for WordPress allows Object Injection because of usces_unserialize. There is not a complete POP chain.
Technical details
- Published
- 2020-11-07
Frequently asked questions
What is CVE-2020-28339?
The usc-e-shop (aka Collne Welcart e-Commerce) plugin before 1.9.36 for WordPress allows Object Injection because of usces_unserialize. There is not a complete POP chain.
Is CVE-2020-28339 actively exploited?
Active exploitation of CVE-2020-28339 has not been confirmed. Its EPSS score was 1.9% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2020-28339?
CVE-2020-28339 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2020-28339 affecting your environment?
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