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CVE-2022-33011

22
FAUCET Score

CVE-2022-33011 describes an account takeover vulnerability in Known v1.3.1+2020120201, stemming from a host header injection attack. This is a high-severity vulnerability with a CVSS score of 8.8, indicating it can be exploited remotely with low complexity, requiring user interaction, and potentially leading to full compromise of confidentiality, integrity, and availability. Despite its severity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.3.1CPE matchmatch criteria
cpe:2.3:a:withknown:known:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.45%
Probability of exploitation in next 30 days
EPSS Percentile
70.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0145 is in the 69th percentile among its peer group of 14,875 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Vendor Advisories (1)

composerGHSA-p757-4v3p-j74fhigh

Known vulnerable to account takeover via host header injection attack in v1.3.1

Jul 9, 2022

References

blog.jitendrapatro.me / multiple-vulnerabilities-in-idno-known-php-cms-software
ExploitThird Party Advisory
github.com / idno/known
ProductThird Party Advisory
github.com / swisskyrepo/PayloadsAllTheThings/tree/master/Account%20Takeover
ExploitThird Party Advisory
pethuraj.com / blog/how-i-earned-800-for-host-header-injection-vulnerability
Third Party Advisory