Vulnerability · Published Apr 6, 2021 · Assigned by mitre
CVE-2021-30146
Medium 5.4
In plain English
A medium-severity security flaw in the seafile-client package (Ubuntu). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Severity (CVSS NVD)5.4Medium
Exploit odds (30 days)0.9%top 41.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Public PoC
Official description
Seafile 7.0.5 (2019) allows Persistent XSS via the "share of library functionality."
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | seafile-client | no fix listed | UBUNTU-CVE-2021-30146 |
| Ubuntu:24.04:LTS | seafile-client | no fix listed | UBUNTU-CVE-2021-30146 |
| Ubuntu:25.10 | seafile-client | no fix listed | UBUNTU-CVE-2021-30146 |
| Ubuntu:26.04:LTS | seafile-client | no fix listed | UBUNTU-CVE-2021-30146 |
| Ubuntu:26.10 | seafile-client | no fix listed | UBUNTU-CVE-2021-30146 |
Affected products (as reported)
References
- https://github.com/Security-AVS/CVE-2021-30146 x_refsource_MISC