Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-102783— Joomla Extension - balbooa.com - Path Traversal in image preview Gridbox < 2.20.4.0

Quick assessment

Affected
balbooa.com Gridbox extension for Joomla
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.

Joomla 扩展 - balbooa.com - Gridbox < 2.20.4.0 中的图像预览存在路径遍历漏洞。Gridbox 的站点组件中，UploaderHelper 使用了仅基于前缀的目录 containment 逻辑。showImage 操作会解析一个由请求控制的文件路径，调用该辅助函数，然后返回对应的图像。如果图像解码功能不可用或失败，该操作将直接流式传输文件内容。因此，位于父目录中的现有图像（例如 images-backup 目录下的图像）即使不在配置的 images 根目录之外，也可能通过当前

CVSS 6.3 · Medium

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-102783

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Joomla Extension - balbooa.com - Path Traversal in image preview Gridbox < 2.20.4.0
Source: CVE Program / CVE List V5
Vulnerability Description
Joomla Extension - balbooa.com - Path Traversal in image preview Gridbox < 2.20.4.0 - Gridbox contains the same prefix-only containment logic in its site UploaderHelper . The showImage action resolves a request-controlled path, calls that helper, and then returns the image. If image decoding is unavailable or fails, the action streams the file directly. An existing image in a sibling directory such as images-backup can therefore satisfy the current containment test even though it is outside the configured images root. The route restricts the file extension to Gridbox image types, which materially limits the read primitive. The default media root is images ; the effective site setting was not independently verified. No prefix-matching sibling directory was found alongside the site’s images directory. The finding is rated Low rather than presented as arbitrary file disclosure.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
balbooa.com Gridbox extension for Joomla 1.0.0-2.20.3.1 -

II. Public POCs for CVE-2026-102783

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-102783

请登录查看更多情报信息。

Vendor Pages for CVE-2026-102783 (1)

IV. Related Vulnerabilities

Same product: Gridbox extension for Joomla
Same vendor: balbooa.com
Same weakness: CWE-22

V. Comments for CVE-2026-102783

No comments yet

Leave a comment