CVE-2023-30540
mediumpriority · track · 17EPSS 0.007 · 51 %ileEUUSEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.5–4.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2023-30540/cnnvd
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-c9hr-cq65-9mjwcnnvd
- https://github.com/nextcloud/spreed/pull/8985cnnvd
- https://hackerone.com/reports/1894676cnnvd
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-c9hr-cq65-9mjwenisa_euvd
- https://github.com/nextcloud/spreed/pull/8985enisa_euvd
- https://hackerone.com/reports/1894676enisa_euvd
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-c9hr-cq65-9mjwVendor Advisorynvd
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