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CVE-2021-45803

27
FAUCET Score

CVE-2021-45803 describes a critical SQL Injection vulnerability in MartDevelopers iResturant 1.0. This flaw allows authenticated attackers to inject malicious SQL queries through the 'view' parameter when viewing reservations, due to insufficient input validation. With a CVSS score of 8.8 (High), successful exploitation can lead to full compromise of confidentiality, integrity, and availability of the affected system. Despite its high severity, there is currently no public exploit code available, nor is it listed in CISA's KEV catalog, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.0CPE matchmatch criteria
cpe:2.3:a:iresturant_project:iresturant:1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
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
1.18%
Probability of exploitation in next 30 days
EPSS Percentile
64.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0118 is in the 61st percentile among its peer group of 17,844 CVEs.

Social Chatter

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

Remediation

Remediation records are not available for this CVE.

References

blog.pocas.kr / posts/sqli-iResturant-2
Broken Link
gist.github.com / P0cas/5aa55f62781364a750ac4a4d47f319fa
ExploitThird Party Advisory