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CVE-2026-56053

WordPress EventPrime plugin <= 4.3.4.1 - PHP Object Injection vulnerability

8.8 High

CVE-2026-56053 is a high vulnerability (CVSS 8.8) in Eventprime, published June 25, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.52%, the 44th percentile. No source names a fixed version.

What does this mean?
Severity
8.8 HighCVSS 3.1, CVE List
Exploit chance
0.52%EPSS, 44th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

Description

Subscriber PHP Object Injection in EventPrime <= 4.3.4.1 versions.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.52%Up 0.1 points since Jun 26, 2026
90%50%10%1%

Affected products

What each source reports

CVE List Score used8.8

WordPress EventPrime plugin <= 4.3.4.1 - PHP Object Injection vulnerability

Subscriber PHP Object Injection in EventPrime <= 4.3.4.1 versions.

Record
CVE-2026-56053
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-502
Updated
2026-11-02
EUVDEUVD-2026-393828.8

Subscriber PHP Object Injection in EventPrime <= 4.3.4.1 versions.

Record
EUVD-2026-39382
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-h5wm-8hx6-m9ff8.8

Subscriber PHP Object Injection in EventPrime <= 4.3.4.1 versions.

Subscriber PHP Object Injection in EventPrime <= 4.3.4.1 versions.

Record
GHSA-h5wm-8hx6-m9ff
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-502
Updated
2026-11-02
NVD8.8

Subscriber PHP Object Injection in EventPrime <= 4.3.4.1 versions.

Record
CVE-2026-56053
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-502
Updated
2026-11-02

History

History
RecordedChangedSources
aliases, products, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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