CollaboraOnline has 2 CVEs on record. 2 were published in the last 90 days. The median CVSS is 4.5 (medium).
CVEs per month
Last 12 months, by publish date
1225/120126/010226/020326/030426/040526/050626/060726/070826/080926/091026/101126/11
- Exploited share
- 0% vs 1% corpus
- Median CVSS
- 4.5
- Publish → KEV
- —
- Last 90 days
- 2 prev 0
2
Total CVEs
0
Critical
0
CISA KEV
0
Exploited
CollaboraOnline vulnerabilities
CVEs affecting CollaboraOnline, newest first. Open any entry for full detail, references, and exploit status.
2 CVEsRSS
CVE-2026-48164Medium· 4.7Collabora Online: Reflected HTML injection through host_session_id
Collabora Online is a collaborative online office suite based on LibreOffice technology. Prior to 24.04.18 and 25.04.11, the `host_session_id` query/form parameter is substituted into the `cool.html` editor page without HTML encoding, un…
▾ SunlitCollaboraOnline · onlineEPSS 0.33%via CVEORG
CVE-2026-46499Medium· 4.3Collabora Online: Read-only session authorization bypass permits live document edits
Collabora Online is a collaborative online office suite based on LibreOffice technology. Prior to 24.04.18 and 25.04.11, several document operations delegated to `LibreOfficeKit` in the per-document kit process fail to enforce a session'…
▾ SunlitCollaboraOnline · onlineEPSS 0.25%via CVEORG