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Threat intelligence

Halstein < 1.8 - Unauthenticated PHP Object Injection

CVE-2026-32508 · halstein

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Halstein at a vulnerable version. How SiteRespond intelligence works

Vulnerability
Halstein < 1.8 - Unauthenticated PHP Object Injection
Affected software
halstein(Theme)
Affected versions
  • < 1.8
Authentication
Unauthenticated
Vulnerability type
Other
Published
23 March 2026
CISA KEV
Not listed in CISA KEV at last catalog refresh
Impact
This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.
Source

Data imported from Wordfence Intelligence (advisory 9048eaa1-159f-4464-89da-fcd80b732f18). Methodology and redistribution notes

Check whether your installed version is affected

SiteRespond Defence matches your installed Halstein version against this catalog when the Defence plugin is connected to your WordPress site.