VulnerabilityModified
CVE-2021-27335
KollectApps before 4.8.16c is affected by insecure Java deserialization, leading to Remote Code Execution via a ysoserial.payloads.CommonsCollections parameter.
CRITICAL 9.8EPSS 3.00%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.00%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
KollectApps before 4.8.16c is affected by insecure Java deserialization, leading to Remote Code Execution via a ysoserial.payloads.CommonsCollections parameter.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.00% probability · 87th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- kollectapp/kollect
- Source
- cve@mitre.org
References
- https://hacked0x90.net/index.php/2021/02/15/kollectapp-insecure-java-deserialization/Exploit, Third Party Advisory
- https://hacked0x90.net/index.php/2021/02/15/kollectapp-insecure-java-deserialization/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.