Vulnerability Details : CVE-2023-30540
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 category: Information leak
Products affected by CVE-2023-30540
- cpe:2.3:a:nextcloud:talk:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-30540
0.49%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 64 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-30540
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
2.8
|
1.4
|
NIST | |
|
3.5
|
LOW | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N |
2.1
|
1.4
|
GitHub, Inc. |
CWE ids for CVE-2023-30540
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: security-advisories@github.com (Secondary)
References for CVE-2023-30540
-
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-c9hr-cq65-9mjw
Chat poll data can still be queried from API after purging history of a chat converstion · Advisory · nextcloud/security-advisories · GitHubVendor Advisory
-
https://hackerone.com/reports/1894676
HackerOnePermissions Required
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https://github.com/nextcloud/spreed/pull/8985
fix(polls): Remove polls also when deleting the chat history by nickvergessen · Pull Request #8985 · nextcloud/spreed · GitHubPatch
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