Vulnerability · Published Nov 13, 2021 · Assigned by @huntrdev
CVE-2021-3915Unrestricted Upload of File with Dangerous Type in bookstackapp/bookstack
High 7.6
In plain English
A high-severity unrestricted file upload in bookstackapp/bookstack from bookstackapp. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.0)7.6High
Exploit odds (30 days)1.0%top 38.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
bookstack is vulnerable to Unrestricted Upload of File with Dangerous Type
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | ssddanbrown/bookstack | 21.0.3 | GHSA-w2f4-hxpm-mq98 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| bookstackapp | bookstackapp/bookstack | unspecified – before 21.10.3 |
Weakness: CWE-434 · Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:H