CVE-2026-7637 (GCVE-0-2026-7637)

Vulnerability from cvelistv5 – Published: 2026-05-20 02:27 – Updated: 2026-05-20 12:47
VLAI
Title
Boost <= 2.0.3 - Unauthenticated PHP Object Injection via STYXKEY-BOOST_USER_LOCATION Cookie
Summary
The Boost plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 2.0.3 via deserialization of untrusted input in the STYXKEY-BOOST_USER_LOCATION cookie. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-20 12:47 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
Wordfence CNA under the mitre root
CNA scorecard C 65/100 over 2379 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
PixelYourSite Boost Affected: 0 , ≤ 2.0.3 (semver)
guessed Create a notification for this product.
Credits
Osvaldo Noe Gonzalez Del Rio
Show details on NVD website
To clipboard 

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