CVE-2023-48302

5.4 mediumEPSS 0.6%

Medium (5.4) in nextcloud nextcloud server. EPSS 0.6% chance of exploitation in the next 30 days.

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.13, 26.0.8, and 27.1.3 of Nextcloud Server and Nextcloud Enterprise Server, when a user is tricked into copy pasting HTML code without markup (Ctrl+Shift+V) the markup will actually render. Nextcloud Server and Nextcloud Enterprise Server versions 25.0.13, 26.0.8, and 27.1.3 contain a fix for this issue. As a workaround, disable app text.

Severity

CVSS 3.1

5.4 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 47% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2023-11-21
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

nextcloud:nextcloud_server

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-p7g9-x25m-4h87
https://github.com/nextcloud/text/pull/4877
https://hackerone.com/reports/2211561
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-p7g9-x25m-4h87
https://github.com/nextcloud/text/pull/4877

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