CVE-2021-28684
MEDIUMCVSS 4.3/10EPSS 0.92%
Last modified
CVE-2021-28684 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. The XML parser used in ConeXware PowerArchiver before 20.10.02 allows processing of external entities, which might lead to exfiltration of local files over the network (via an XXE attack).. EPSS estimates a 0.92% chance of exploitation in the next 30 days.
Description
The XML parser used in ConeXware PowerArchiver before 20.10.02 allows processing of external entities, which might lead to exfiltration of local files over the network (via an XXE attack).
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Powerarchiver | Powerarchiver | < 20.10.02 |
References
- https://peterka.tech/blog/posts/cve-2021-28684/Exploit, Third Party Advisory
- https://peterka.tech/blog/posts/cve-2021-28684/Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-28684?
The XML parser used in ConeXware PowerArchiver before 20.10.02 allows processing of external entities, which might lead to exfiltration of local files over the network (via an XXE attack).
How severe is CVE-2021-28684?
CVE-2021-28684 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.92% probability of exploitation in the next 30 days.
How do I fix CVE-2021-28684?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-28684?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST