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CVE-2026-39578

WordPress Valiance theme <= 1.2 - PHP Object Injection vulnerability

8.1 High

Unauthenticated PHP Object Injection in Valiance <= 1.2 versions.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
High
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

0.27%Unchanged since Jun 17, 2026
90%50%10%1%

What each source reports

CVE List Score used 8.1

WordPress Valiance theme <= 1.2 - PHP Object Injection vulnerability

Unauthenticated PHP Object Injection in Valiance <= 1.2 versions.

Record
CVE-2026-39578
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
Weakness
CWE-502
Updated
2026-11-02
EUVDEUVD-2026-37483 8.1

Unauthenticated PHP Object Injection in Valiance <= 1.2 versions.

Record
EUVD-2026-37483
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-c5gq-2xwj-534f 5.5

Unauthenticated PHP Object Injection in Valiance <= 1.2 versions.

Unauthenticated PHP Object Injection in Valiance <= 1.2 versions.

Record
GHSA-c5gq-2xwj-534f
CVSS 3.1
5.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
Weakness
CWE-502
Updated
2026-11-02
NVD 5.5

Unauthenticated PHP Object Injection in Valiance <= 1.2 versions.

Record
CVE-2026-39578
CVSS 3.1
5.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
Weakness
CWE-502
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD

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

In short

CVE-2026-39578 is a high vulnerability (CVSS 8.1) in Elated-themes Valiance, published June 16, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 19th percentile. No source names a fixed version.

References

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