Nextcloud Talk <15.0.5 Deletion Info Disclosure in Conversation
CVE-2023-30540 Published on April 17, 2023
Chat poll data can still be queried from API after purging history in Nextcloud talk
Nextcloud Talk is a chat, video & audio call extension for Nextcloud. In affected versions a user that was added later to a conversation can use this information to get access to data that was deleted before they were added to the conversation. This issue has been patched in version 15.0.5 and it is recommended that users upgrad to 15.0.5. There are no known workarounds for this issue.
Vulnerability Analysis
CVE-2023-30540 is exploitable with network access, requires user interaction and a small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
What is an Information Disclosure Vulnerability?
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CVE-2023-30540 has been classified to as an Information Disclosure vulnerability or weakness.
Products Associated with CVE-2023-30540
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Affected Versions
nextcloud security-advisories Version >= 15.0.0, < 15.0.5 is affected by CVE-2023-30540Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.