CVE-2026-27084
WordPress Buisson theme <= 1.1.11 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in ThemeREX Buisson buisson allows Object Injection.This issue affects Buisson: from n/a through <= 1.1.11.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
WordPress Buisson theme <= 1.1.11 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in ThemeREX Buisson buisson allows Object Injection.This issue affects Buisson: from n/a through <= 1.1.11.
- Record
CVE-2026-27084- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
EUVDEUVD-2026-15796
Deserialization of Untrusted Data vulnerability in ThemeREX Buisson buisson allows Object Injection.This issue affects Buisson: from n/a through <= 1.1.11.
- Record
EUVD-2026-15796- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-qq9h-65hg-3824
Deserialization of Untrusted Data vulnerability in ThemeREX Buisson buisson allows Object...
Deserialization of Untrusted Data vulnerability in ThemeREX Buisson buisson allows Object Injection.This issue affects Buisson: from n/a through <= 1.1.11.
- Record
GHSA-qq9h-65hg-3824- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
NVD
Deserialization of Untrusted Data vulnerability in ThemeREX Buisson buisson allows Object Injection.This issue affects Buisson: from n/a through <= 1.1.11.
- Record
CVE-2026-27084- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-27084 is a critical vulnerability (CVSS 9.8) in Themerex Buisson, published March 25, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.51%, the 43rd percentile. No source names a fixed version.