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CVE-2026-85655— Enable Media Replace <= 4.2.2 - Missing Authorization to Authenticated (Author+) Post Content Modification via Media Replacement Workflow

Quick assessment

Affected
shortpixel Enable Media Replace
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 的 Enable Media Replace 插件在 4.2.2 及之前所有版本中存在授权绕过漏洞。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。这使得已认证的攻击者（拥有作者（Author）级别或更高权限）能够修改任何引用了被替换媒体的已发布文章的 post_content 字段，包括由管理员（Administrator）拥有的文章，且修改内容会立即对未认证访客可见。 具体而言， 方法会在整个数据库中对所有包含旧媒体 URL 的文章执行搜索并替换操作，而并未针对每篇文章进行相应的权

CVSS 4.3 · Medium

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2026-85655

Vulnerability Information
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Vulnerability Title
Enable Media Replace <= 4.2.2 - Missing Authorization to Authenticated (Author+) Post Content Modification via Media Replacement Workflow
Source: CVE Program / CVE List V5
Vulnerability Description
The Enable Media Replace plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.2.2. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with author-level access and above, to modify the post_content of any published post referencing the replaced media — including Administrator-owned posts — making changes immediately visible to unauthenticated visitors. The doReplaceQuery() method performs a database-wide search-and-replace across all posts containing the old media URL without any per-post capability check, meaning a single Author-triggered request can silently overwrite a large number of posts that WordPress's standard admin UI and REST API would otherwise forbid that user from editing.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/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
shortpixel Enable Media Replace 0 ~ 4.2.2 -

II. Public POCs for CVE-2026-85655

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III. Intelligence Information for CVE-2026-85655

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Other References for CVE-2026-85655 (10)

IV. Related Vulnerabilities

Same product: Enable Media Replace
Same vendor: shortpixel
Same weakness: CWE-862