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CVE-2026-120551— WP Compress <= 7.22.01 - Missing Authorization to Unauthenticated Account Linking / Site Takeover via 'force_ic_connect' and 'apikey' Parameters

Quick assessment

Affected
aresit WP Compress – Instant Performance & Speed Optimization
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 插件"WP Compress – Instant Performance & Speed Optimization"在包括 7.22.01 在内的所有版本中均存在授权绕过漏洞。该漏洞源于插件未能正确验证用户是否具备执行特定操作的权限。这使得未认证的攻击者能够将受害网站链接到由其控制的 WP Compress 账户，将插件设置覆盖为激进的实时 CDN 预设，并获取用于认证所有无权限（nopriv）HMAC 防护端点的共享 API 密钥（api_key），从而获得对缓存清除、文件删除、操作码缓存失效

CVSS 5.3 · Medium
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I. Basic Information for CVE-2026-120551

Vulnerability Information
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Vulnerability Title
WP Compress <= 7.22.01 - Missing Authorization to Unauthenticated Account Linking / Site Takeover via 'force_ic_connect' and 'apikey' Parameters
Source: CVE Program / CVE List V5
Vulnerability Description
The WP Compress – Instant Performance & Speed Optimization plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 7.22.01. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to link the victim site to an attacker-controlled WP Compress account, overwrite plugin settings to an aggressive live-CDN preset, and gain the shared api_key that authenticates all nopriv HMAC-gated endpoints — enabling full control over cache purging, file deletion, opcode cache invalidation, and other privileged plugin operations. This vulnerability only affects fresh installations or lite/free-mode installs where no api_key is already stored, as the sole guard fails open when the stored key is absent.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
aresit WP Compress – Instant Performance & Speed Optimization 0 ~ 7.22.01 -

II. Public POCs for CVE-2026-120551

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III. Intelligence Information for CVE-2026-120551

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Other References for CVE-2026-120551 (5)

IV. Related Vulnerabilities

Same product: WP Compress – Instant Performance & Speed Optimization
Same vendor: aresit
Same weakness: CWE-862