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CVE-2026-7311— TinyPNG <= 3.6.13 - Authenticated (Author+) Arbitrary File Deletion via 'convert.path' in 'tiny_compress_images' Post Meta

Quick assessment

Affected
tinypng TinyPNG – JPEG, PNG & WebP image compression
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.

TinyPNG TinyPNG是TinyPNG公司的一款WordPress图像压缩与优化插件。 TinyPNG 3.6.13及之前版本存在路径遍历漏洞，该漏洞源于delete_converted_image_size函数中对文件路径验证不足，可能导致经过身份验证的攻击者（作者级别及以上）删除服务器上的任意文件，进而导致远程代码执行。

CVSS 8.1 · High EPSS 1.03% · P64

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 1

VendorProduct Version RangeStatus
tinypng TinyPNG – JPEG, PNG & WebP image compression ≤ 3.6.13 affected
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I. Basic Information for CVE-2026-7311

Vulnerability Information
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Vulnerability Title
TinyPNG <= 3.6.13 - Authenticated (Author+) Arbitrary File Deletion via 'convert.path' in 'tiny_compress_images' Post Meta
Source: CVE Program / CVE List V5
Vulnerability Description
The TinyPNG – JPEG, PNG & WebP image compression plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the delete_converted_image_size function in all versions up to, and including, 3.6.13. This makes it possible for authenticated attackers, with author-level access and above, 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). An attacker can exploit this by injecting an arbitrary server file path into the 'convert.path' field of the 'tiny_compress_images' post meta on an attachment they own, then triggering attachment deletion to invoke the vulnerable code path.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
TinyPNG 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TinyPNG TinyPNG是TinyPNG公司的一款WordPress图像压缩与优化插件。 TinyPNG 3.6.13及之前版本存在路径遍历漏洞，该漏洞源于delete_converted_image_size函数中对文件路径验证不足，可能导致经过身份验证的攻击者（作者级别及以上）删除服务器上的任意文件，进而导致远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
tinypng TinyPNG – JPEG, PNG & WebP image compression 0 ~ 3.6.13 -

II. Public POCs for CVE-2026-7311

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III. Intelligence Information for CVE-2026-7311

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Patches & Fixes for CVE-2026-7311 (3)

Vendor Advisories for CVE-2026-7311 (1)

IV. Related Vulnerabilities

Same vendor: tinypng
Same weakness: CWE-22