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Flatastic

2 CVEs product

Monthly

CVE-2026-66673 Aug 20, 12:07 HIGH This Week

Reflected Cross-Site Scripting in the Flatastic WordPress theme (all versions through 2.0) enables unauthenticated remote attackers to inject and execute arbitrary JavaScript in a victim's browser by delivering a crafted URL. The CVSS Scope:Changed metric confirms the injected script crosses trust boundaries, executing in the victim's browser context with access to session tokens and the ability to perform actions on behalf of authenticated users. No public exploit code has been identified at time of analysis, and this CVE does not appear in the CISA Known Exploited Vulnerabilities catalog.

XSS Flatastic
NVD
CVSS 3.1
7.1
EPSS
0.2%
CVE-2026-66672 Aug 20, 12:07 CRITICAL Act Now

PHP Object Injection in the Flatastic WordPress theme (versions 2.0 and earlier, by author monkeysan) lets unauthenticated remote attackers pass attacker-controlled serialized data into a PHP unserialize() call, potentially achieving remote code execution, data theft, or site takeover if a suitable POP gadget chain is present in the WordPress core, plugins, or theme. Reported by Patchstack and rated CVSS 9.8, it requires no authentication or user interaction. No public exploit is identified at time of analysis, and it is not listed in CISA KEV.

Deserialization PHP Flatastic
NVD
CVSS 3.1
9.8
EPSS
0.4%
EPSS 0% CVSS 7.1
HIGH This Week

Reflected Cross-Site Scripting in the Flatastic WordPress theme (all versions through 2.0) enables unauthenticated remote attackers to inject and execute arbitrary JavaScript in a victim's browser by delivering a crafted URL. The CVSS Scope:Changed metric confirms the injected script crosses trust boundaries, executing in the victim's browser context with access to session tokens and the ability to perform actions on behalf of authenticated users. No public exploit code has been identified at time of analysis, and this CVE does not appear in the CISA Known Exploited Vulnerabilities catalog.

XSS Flatastic
NVD
EPSS 0% CVSS 9.8
CRITICAL Act Now

PHP Object Injection in the Flatastic WordPress theme (versions 2.0 and earlier, by author monkeysan) lets unauthenticated remote attackers pass attacker-controlled serialized data into a PHP unserialize() call, potentially achieving remote code execution, data theft, or site takeover if a suitable POP gadget chain is present in the WordPress core, plugins, or theme. Reported by Patchstack and rated CVSS 9.8, it requires no authentication or user interaction. No public exploit is identified at time of analysis, and it is not listed in CISA KEV.

Deserialization PHP Flatastic
NVD

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