CVE-2023-6721
Improper Restriction of XML External Entity Reference in Repox
An XEE vulnerability has been found in Repox, which allows a remote attacker to interfere with the application's XML data processing in the fileupload function, resulting in interaction between the attacker and the server's file 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
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Improper Restriction of XML External Entity Reference in Repox
An XEE vulnerability has been found in Repox, which allows a remote attacker to interfere with the application's XML data processing in the fileupload function, resulting in interaction between the attacker and the server's file system.
- Record
CVE-2023-6721- CVSS 3.1
- 8.3 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L - Weakness
- CWE-611
- Updated
- 2026-11-02
EUVDEUVD-2023-0296
An XEE vulnerability has been found in Repox, which allows a remote attacker to interfere with the application's XML data processing in the fileupload function, resulting in interaction between the attacker and the server's file system.
- Record
EUVD-2023-0296- CVSS 3.1
- 8.3 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-gfqh-8v9q-f2vf
An XEE vulnerability has been found in Repox, which allows a remote attacker to interfere with...
An XEE vulnerability has been found in Repox, which allows a remote attacker to interfere with the application's XML data processing in the fileupload function, resulting in interaction between the attacker and the server's file system.
- Record
GHSA-gfqh-8v9q-f2vf- CVSS 3.1
- 8.3 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L - Weakness
- CWE-611
- Updated
- 2026-11-02
NVD
An XEE vulnerability has been found in Repox, which allows a remote attacker to interfere with the application's XML data processing in the fileupload function, resulting in interaction between the attacker and the server's file system.
- Record
CVE-2023-6721- CVSS 3.1
- 8.3 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-611
- Updated
- 2026-11-02
OSVPYSEC-2023-296
An XEE vulnerability has been found in Repox, which allows a remote attacker to interfere with the application's XML data processing in the fileupload function, resulting in interaction between the attacker and the server's file system.
- Record
PYSEC-2023-296- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | ||
| affected, aliases, published, references | EUVD | |
| first indexed | OSV | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-6721 is a high vulnerability (CVSS 8.3) in Europeana Repox, published December 13, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.60%, the 49th percentile. No source names a fixed version.