CVE-2025-15285
Published: 04 February 2026
Summary
CVE-2025-15285 is a high-severity Missing Authorization (CWE-862) vulnerability in Wordpress (inferred from references). Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 25.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 AC-14 (Permitted Actions Without Identification or Authentication) and AC-3 (Access Enforcement).
Deeper analysis
CVE-2025-15285 is a missing authorization vulnerability (CWE-862) in the SEO Flow by LupsOnline plugin for WordPress, affecting all versions up to and including 2.2.1. The issue arises in the checkBlogAuthentication() and checkCategoryAuthentication() functions within the plugin's class-linknetwerk-api.php file, which perform only basic API key authentication without enforcing required WordPress capability checks. This flaw enables unauthorized modification of data due to inadequate access controls.
Unauthenticated attackers (PR:N) can exploit the vulnerability remotely over the network (AV:N) with low attack complexity (AC:L) and no user interaction (UI:N), resulting in high integrity impact (I:H) but no confidentiality (C:N) or availability (A:N) effects. Successful exploitation allows attackers to create, modify, and delete blog posts and categories. The CVSS v3.1 base score is 7.5.
Advisories recommend updating to version 3.0.1 or later, where the authorization functions have been revised, as shown in the WordPress plugin Trac changeset comparing tags 2.2.1 and 3.0.1. Wordfence's threat intelligence details the vulnerability (ID 526837cc-ed1d-4d3d-8f75-a2098445dd1d), and the vulnerable code is highlighted in the Trac browser for version 2.2.1 at lines 83-99 and 101-117.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-206787
Vulnerability details
The SEO Flow by LupsOnline plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the checkBlogAuthentication() and checkCategoryAuthentication() functions in all versions up to, and including, 2.2.1. These authorization functions only implement…
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basic API key authentication but fail to implement WordPress capability checks. This makes it possible for unauthenticated attackers to create, modify, and delete blog posts and categories.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Missing authorization in public-facing WordPress plugin directly enables remote unauthenticated exploitation of a web application.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
AC-3 enforces approved authorizations for logical access to system resources, directly addressing the missing WordPress capability checks that enable unauthorized modification of blog posts and categories.
AC-14 identifies and restricts permitted actions without identification or authentication, preventing unauthenticated attackers from exploiting the plugin's flawed authorization functions.
AC-6 applies least privilege to ensure only authorized accesses are granted, mitigating excessive permissions resulting from the inadequate capability checks in checkBlogAuthentication() and checkCategoryAuthentication().