CVE-2025-6990
Published: 01 November 2025
Summary
CVE-2025-6990 is a high-severity Code Injection (CWE-94) vulnerability in Hogash (inferred from references). Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 32.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 AC-3 (Access Enforcement) and AC-6 (Least Privilege).
Deeper analysis
CVE-2025-6990 is a remote code execution (RCE) vulnerability (CWE-94) in the Kallyas theme for WordPress, affecting all versions up to and including 4.24.0. The flaw exists in the TH_PhpCode pagebuilder widget, which provides a code editor that the theme fails to restrict to administrators, allowing unauthorized access by lower-privileged users.
Authenticated attackers with Contributor-level access or higher can exploit this vulnerability remotely with low complexity and no user interaction required. Exploitation enables arbitrary code execution on the server, granting high impacts to confidentiality, integrity, and availability, as reflected in its CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
Advisories with mitigation and patch details are available in the Kallyas theme changelog at https://my.hogash.com/changelog_category/kallyas-wordpress-theme/ and the Wordfence threat intelligence report at https://www.wordfence.com/threat-intel/vulnerabilities/id/721d29e4-397d-4965-bd64-33bced8e5de4?source=cve.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-37432
Vulnerability details
The kallyas theme for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.24.0 via the `TH_PhpCode` pagebuilder widget. This is due to the theme not restricting access to the code editor widget for non-administrators.…
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This makes it possible for authenticated attackers, with Contributor-level access and above, to execute code on the server.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Authenticated low-privilege (Contributor+) remote code execution via unrestricted PHP code editor in WordPress theme directly enables exploitation of a public-facing application (T1190) and privilege escalation from low privileges to full server compromise (T1068).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Enforces least privilege by restricting access to the TH_PhpCode code execution widget to administrators only, preventing Contributors and lower roles from exploiting the vulnerability.
Requires enforcement of approved access authorizations to block non-administrators from using the unrestricted code editor widget in the Kallyas theme.
Directly mitigates the RCE flaw by identifying, prioritizing, and applying patches available in the Kallyas theme changelog.