CVE-2021-27889 :: Enginsight Vulnerability Database

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	6.1 MEDIUM	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
mitre	CNA	---				---
CVE	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 83%

Vendor	Product	Version
mybb	mybb	𝑥 < 1.8.26

𝑥

= Vulnerable software versions

Known Exploits!

Common Weakness Enumeration

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References

http://packetstormsecurity.com/files/161908/MyBB-1.8.25-Remote-Command-Execution.html

https://blog.sonarsource.com/mybb-remote-code-execution-chain

https://github.com/mybb/mybb/security/advisories/GHSA-xhj7-3349-mqcm

http://packetstormsecurity.com/files/161908/MyBB-1.8.25-Remote-Command-Execution.html

https://blog.sonarsource.com/mybb-remote-code-execution-chain

https://github.com/mybb/mybb/security/advisories/GHSA-xhj7-3349-mqcm