EUVD-2026-93080
GHSA-wm8r-hhm6-f67f
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Network-reachable and unauthenticated (AV:N/PR:N/UI:N); AC:H because object injection needs a viable POP gadget chain; successful exploitation can yield full RCE-level C/I/A impact on the single host (S:U).
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
Lifecycle Timeline
2DescriptionCVE.org
Unauthenticated PHP Object Injection in Haaken <= 1.5 versions.
Articles & Coverage 1
AnalysisAI
Unauthenticated PHP object injection in the Haaken WordPress theme affects all versions up to and including 1.5, allowing remote attackers to supply crafted serialized data to an unserialize() sink without any prior authentication (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H, base 8.1). The conditional nature of the risk is captured by the AC:H rating: full impact (remote code execution or data compromise) generally depends on a usable POP gadget chain being present in the theme, WordPress core, or another installed plugin, so exposure is limited to sites actually running this theme at an affected version. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation targets a PHP unserialize() sink in the Haaken WordPress theme versions <= 1.5, reachable by unauthenticated remote attackers (PR:N/UI:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine but conditional priority. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch was identified at time of analysis; the Patchstack advisory at https://patchstack.com/database/wordpress/theme/haaken/vulnerability/wordpress-haaken-theme-1-5-php-object-injection-vulnerability is the only published reference and does not include a fixed version string, so administrators should treat Haaken 1.5 and earlier as unpatched. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory every externally reachable WordPress property and confirm which ones run the Haaken theme at version 1.5 or earlier; for any confirmed instance, treat it as exposed and either switch to a supported default theme or, if the theme is business-critical, place the site behind a web application firewall with virtual patching rules targeting PHP object injection patterns in theme-related request parameters, and enable verbose logging on those endpoints so malicious serialized payloads can be detected. …
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External POC / Exploit Code
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