CVE-2023-39955 — Cross-site Scripting in Notes

CWE-79 — Cross-site Scripting2 documents2 sources
Severity
6.1MEDIUMNVD
CNA3.5
EPSS
0.7%
top 27.87%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Nextcloud NotesNextcloud Security-advisories
Timeline
PublishedAug 10

Description

Notes is a note-taking app for Nextcloud, an open-source cloud platform. Starting in version 4.4.0 and prior to version 4.8.0, when creating a note file with HTML, the content is rendered in the preview instead of the file being offered to download. Nextcloud Notes app version 4.8.0 contains a patch for the issue. No known workarounds are available.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NExploitability: 2.8 | Impact: 2.7

Affected Packages2 packages

▶NVDnextcloud/notes4.4.0 — 4.8.0
▶CVEListV5nextcloud/security-advisories>= 4.4.0, < 4.8.0

Patches

Patch: github.com ↗Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

1
CVEList
Notes attachment render HTML in preview mode↗2023-08-10
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CVE-2023-39955 — Cross-site Scripting in Notes | cvebase