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CVE-2021-30108

27
FAUCET Score

CVE-2021-30108 is a critical Server-Side Request Forgery (SSRF) vulnerability affecting Feehi CMS version 2.1.1, allowing an attacker to manipulate the HTTP Referer header to force the server to make requests to arbitrary URLs. With a CVSS score of 9.1, this vulnerability is easily exploitable over the network with low complexity and no user interaction, potentially leading to high confidentiality and integrity impacts. There is currently no public exploit code available (Metasploit, Nuclei, ExploitDB), and it is not listed on the CISA KEV catalog, indicating no active exploitation. Furthermore, there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.1.1CPE matchmatch criteria
cpe:2.3:a:feehi:feehi_cms:2.1.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.11%
Probability of exploitation in next 30 days
EPSS Percentile
62.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0111 is in the 48th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

composerGHSA-gc45-j3m5-8qfqcritical

Server-Side Request Forgery in Feehi CMS

Jun 8, 2021

References

github.com / liufee/cms/issues/57
ExploitIssue TrackingThird Party Advisory