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CVE-2026-48945— Joomla Extension - getk2.org - Privileged RCE vulnerability in K2 extension for Joomla < 2.26

Quick assessment

Affected
getk2.org K2 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.

K2 K2 extension for Joomla是K2团队的一款Joomla的K2扩展组件。 K2 extension for Joomla 1.0至2.26版本存在任意文件上传漏洞，该漏洞源于文章图库上传路径接受zip/tar压缩包，提取时只重命名图片文件，非图片文件（包括.php）原样提取并通过直接HTTP访问可执行，可能导致攻击者上传任意文件。

AI Predicted 9.8 Difficulty: Trivial EPSS 0.33% · P25

Affected Version Matrix 1

VendorProduct Version RangeStatus
getk2.org K2 extension for Joomla 1.0-2.26 affected
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I. Basic Information for CVE-2026-48945

Vulnerability Information
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Vulnerability Title
Joomla Extension - getk2.org - Privileged RCE vulnerability in K2 extension for Joomla < 2.26
Source: CVE Program / CVE List V5
Vulnerability Description
The K2 article gallery upload path accepts a zip/tar archive, extracts it under `/media/k2/galleries/<id>/`, and only renames image files (gif/jpg/jpeg/png/webp) to safe names — non-image files (including `.php`) are extracted as-is and remain executable via direct HTTP access.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
K2 extension for Joomla 任意文件上传漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
K2 K2 extension for Joomla是K2团队的一款Joomla的K2扩展组件。 K2 extension for Joomla 1.0至2.26版本存在任意文件上传漏洞，该漏洞源于文章图库上传路径接受zip/tar压缩包，提取时只重命名图片文件，非图片文件（包括.php）原样提取并通过直接HTTP访问可执行，可能导致攻击者上传任意文件。
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
getk2.org K2 extension for Joomla 1.0-2.26 -

II. Public POCs for CVE-2026-48945

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III. Intelligence Information for CVE-2026-48945

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Vendor Pages for CVE-2026-48945 (1)

Same Patch Batch · getk2.org · 2026-06-25 · 7 CVEs total

CVE-2026-48943 Joomla Extension - getk2.org - Authenticated user property mass-assignment in K2 extension
CVE-2026-48941 Joomla Extension - getk2.org - Unauthenticated folder delete in K2 extension for Joomla <
CVE-2026-48946 Joomla Extension - getk2.org - Privileged RCE vulnerability in K2 extension for Joomla < 2
CVE-2026-48942 Joomla Extension - getk2.org - Stored-XSS in K2 extension for Joomla < 2.26
CVE-2026-48940 Joomla Extension - getk2.org - Stored-XSS in K2 extension for Joomla < 2.26
CVE-2026-48944 Joomla Extension - getk2.org - Exposure of sensitive files via attachment copy in K2 exten

IV. Related Vulnerabilities

Same product: K2 extension for Joomla
Same vendor: getk2.org
Same weakness: CWE-434