🛡️ CVE-2026-65891 — jce

🟡 CVSS 6.5 — Medium ✅ No Known Exploit CWE-20 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Joomla Extension - joomlacontenteditor.net - Creation of hidden files and unintended file overwrite via rename function in Joomla Content Editor (JCE) < 2.20.2 - Improper input validation in the file rename functionality allowed an authenticated user with file management permissions to rename files to otherwise invalid names, resulting in the creation of hidden files. The issue also allowed existing files at the destination path to be unintentionally replaced.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity high, availability none.

Weakness class

CVE-2026-65891 is classified as CWE-20: Improper Input Validation. The application accepts input without checking that it has the expected form, so malformed values reach code that assumes they are well formed.

Affected software

CVE-2026-65891 is recorded against 1 package.

  • jce (fixed in 2.20.2)

Timeline and source

Published on 29 July 2026 and last revised on 5 August 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

www.joomlacontenteditor.net

Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CWE CWE-20
Public Exploit ✅ No
Source NVD
Published 2026-07-29
Updated 2026-08-11
Modified 2026-08-05
Fix URL N/A

Affected Packages

Software From version Fixed in
jce — 2.20.2

Similar Threats

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