CVE-2021-3742

A Server-Side Request Forgery (SSRF) vulnerability was discovered in chatwoot/chatwoot, affecting all versions prior to 2.5.0. The vulnerability allows an attacker to upload an SVG file containing a malicious SSRF payload. When the SVG file is used as an avatar and opened in a new tab, it can trigger the SSRF, potentially leading to host redirection.
SSRF
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.8 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
@huntr_aiCNA
7.9 HIGH
ADJACENT_NETWORK
LOW
HIGH
CVSS:3.0/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
CISA-ADPADP
7.9 HIGH
ADJACENT_NETWORK
LOW
HIGH
CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 23%
VendorProductVersion
chatwootchatwoot
𝑥
< 2.5.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/chatwoot/chatwoot/commit/6fdd4a29969be8423f31890b807d27d13627c50c
https://huntr.com/bounties/1625472546121-chatwoot/chatwoot