CVE-2021-27335

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.99% Top 20%
Third-Party Advisory hacked0x90.net
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://hacked0x90.net/index.php/2021/02/15/kollectapp-insecure-java-deserialization/ third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-27335?
CVE-2021-27335 has been scored as a critical severity vulnerability.
How to fix CVE-2021-27335?
To fix CVE-2021-27335, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-27335 being actively exploited in the wild?
It is possible that CVE-2021-27335 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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