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CVE-2026-89301— rtMedia for WordPress, BuddyPress and bbPress <= 4.7.13 - Missing Authorization to Unauthenticated Limited File Read/Disclosure and Limited File Deletion via Sideload via 'files[tmp_name]' Parameter

Quick assessment

Affected
rtcamp rtMedia for WordPress, BuddyPress and bbPress
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 rtMedia 插件（适用于 WordPress、BuddyPress 和 bbPress）在所有 4.7.13 及以下版本中，由于 process 函数中存在文件路径验证不足的安全漏洞，导致存在有限的文件删除风险。该漏洞使得未经身份验证的攻击者能够删除服务器上任意安全文件。公共一次性令牌（rtmedia_upload_nonce）在渲染 rtMedia 画廊或上传短代码的任何页面的前端 JavaScript 中暴露，因此未经身份验证的访客无需任何前置认证或特权操作即可获取该令牌。

CVSS 7.5 · High EPSS 0.43% · P35

Affected Version Matrix 1

VendorProduct Version RangeStatus
rtcamp rtMedia for WordPress, BuddyPress and bbPress ≤ 4.7.13 affected
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I. Basic Information for CVE-2026-89301

Vulnerability Information
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Vulnerability Title
rtMedia for WordPress, BuddyPress and bbPress <= 4.7.13 - Missing Authorization to Unauthenticated Limited File Read/Disclosure and Limited File Deletion via Sideload via 'files[tmp_name]' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The rtMedia for WordPress, BuddyPress and bbPress plugin for WordPress is vulnerable to limited file deletion due to insufficient file path validation in the process function in all versions up to, and including, 4.7.13 This makes it possible for unauthenticated attackers to delete arbitrary safe files on the server.. The public nonce (rtmedia_upload_nonce) is emitted into frontend JavaScript on any page rendering the rtMedia gallery or upload shortcode, making it retrievable by unauthenticated visitors without any prior authentication or privileged action.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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
rtcamp rtMedia for WordPress, BuddyPress and bbPress 0 ~ 4.7.13 -

II. Public POCs for CVE-2026-89301

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III. Intelligence Information for CVE-2026-89301

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Patches & Fixes for CVE-2026-89301 (6)

News Coverage for CVE-2026-89301 (1)

Other References for CVE-2026-89301 (2)

IV. Related Vulnerabilities

Same product: rtMedia for WordPress, BuddyPress and bbPress
Same vendor: rtcamp
Same weakness: CWE-862

V. Comments for CVE-2026-89301

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