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CVE-2026-124969— Optimole <= 4.2.19 - Unauthenticated PHP Object Injection to Arbitrary File Deletion via 'comment_content'/'comment_agent' Parameter during Attachment Rename

Quick assessment

Affected
optimole Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image 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 Optimole – Optimize Images 成功利用该漏洞需满足以下条件： 1. 主机上必须存在并可加载 PEAR 的 Archive_Tar 库（这在官方 WordPress Docker 镜像以及许多 PHP 发行版中较为常见）； 2. 攻击者必须在评论中预先植入恶意载荷； 3. 随后必须由一名管理员对该附件使用插件中的“重命名”功能。 此外，成功利用还需要管理员的操作配合——攻击者无法自行触发该漏洞。

CVSS 7.1 · High EPSS 0.45% · P40

Affected Version Matrix 1

VendorProduct Version RangeStatus
optimole Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization ≤ 4.2.19 affected
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I. Basic Information for CVE-2026-124969

Vulnerability Information
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Vulnerability Title
Optimole <= 4.2.19 - Unauthenticated PHP Object Injection to Arbitrary File Deletion via 'comment_content'/'comment_agent' Parameter during Attachment Rename
Source: CVE Program / CVE List V5
Vulnerability Description
The Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the replace_urls_in_value function in all versions up to, and including, 4.2.19. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). Successful exploitation requires PEAR's Archive_Tar library to be present and loadable on the host (common in official WordPress Docker images and many PHP distributions), and an administrator must subsequently use the plugin's Rename control on any attachment after the attacker has staged a malicious payload in a comment. Successful exploitation additionally requires an action by an administrator — the attacker cannot trigger the vulnerability on their own.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
optimole Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization 0 ~ 4.2.19 -

II. Public POCs for CVE-2026-124969

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III. Intelligence Information for CVE-2026-124969

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Vendor Advisories for CVE-2026-124969 (1)

IV. Related Vulnerabilities

Same product: Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization
Same vendor: optimole
Same weakness: CWE-502