PT-2023-22767 · Nextcloud · Nextcloud Talk

Hackitbharat · Published 2023-04-17 · Updated 2023-04-27 · CVE-2023-30540

Positive Technologies (AI Summary)

CVSS v3.1

3.5

Low

Base vector

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

Name of the Vulnerable Software and Affected Versions Nextcloud Talk versions prior to 15.0.5

Description The issue allows a user added later to a conversation to access data that was deleted before they were added. This is a problem in Nextcloud Talk, a chat, video, and audio call extension for Nextcloud.

Recommendations For versions prior to 15.0.5, upgrade to version 15.0.5 to resolve the issue. As a temporary workaround, consider restricting access to conversations that contain sensitive or deleted data until the upgrade is applied.

Exploit

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2023-30540

GHSA-C9HR-CQ65-9MJW

Affected Products

Nextcloud Talk

References · 8

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/30xxx/CVE-2023-30540.json · Exploit
• https://github.com/nextcloud/spreed/pull/8985 · Patch
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-c9hr-cq65-9mjw · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-30540 · Security Note
• https://osv.dev/vulnerability/CVE-2023-30540 · Vendor Advisory
• https://t.me/cvenotify/48472 · Telegram Post
• https://hackerone.com/reports/1894676 · Note
• https://t.me/cvenotify/48473 · Telegram Post