CVE-2020-4782
IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to traverse...
IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to traverse directories on the system. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to traverse directories on the system. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system.
- Record
CVE-2020-4782- CVSS 3.0
- 6.5 Medium
CVSS:3.0/S:U/C:H/AV:N/AC:L/UI:N/A:N/PR:L/I:N/RL:O/RC:C/E:U - Updated
- 2026-11-02
EUVDEUVD-2020-26029
IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to traverse directories on the system. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system.
- Record
EUVD-2020-26029- CVSS 3.0
- 6.5 Medium
CVSS:3.0/S:U/C:H/AV:N/AC:L/UI:N/A:N/PR:L/I:N/RL:O/RC:C/E:U - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-489v-5hfj-rmgc No score
IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to traverse...
IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to traverse directories on the system. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system.
- Record
GHSA-489v-5hfj-rmgc- Weakness
- CWE-22
- Updated
- 2026-11-02
NVD
IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to traverse directories on the system. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system.
- Record
CVE-2020-4782- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-4782 is a medium vulnerability (CVSS 6.5) in Ibm Websphere Application Server, published October 28, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.56%, the 85th percentile. No source names a fixed version.