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CVE-2021-22848

30
FAUCET Score

CVE-2021-22848 is a critical SQL Injection vulnerability affecting HGiga MailSherlock products (msr45_isherlock-antispam, msr45_isherlock-user, ssr45_isherlock-antispam, ssr45_isherlock-user). This flaw allows unauthenticated remote attackers to inject and execute arbitrary SQL commands via a URL parameter on email pages. With a CVSS score of 9.8, the vulnerability has a high impact on confidentiality, integrity, and availability, requiring no user interaction or privileges to exploit. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.5-133CPE matchmatch criteria
cpe:2.3:a:hgiga:msr45_isherlock-antispam:*:*:*:*:*:*:*:*
< 4.5-120CPE matchmatch criteria
cpe:2.3:a:hgiga:msr45_isherlock-user:*:*:*:*:*:*:*:*
< 4.5-133CPE matchmatch criteria
cpe:2.3:a:hgiga:ssr45_isherlock-antispam:*:*:*:*:*:*:*:*
< 4.5-120CPE matchmatch criteria
cpe:2.3:a:hgiga:ssr45_isherlock-user:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.0HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.2
Impact Score
4.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.98%
Probability of exploitation in next 30 days
EPSS Percentile
58.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0098 is in the 44th percentile among its peer group of 36,835 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

Remediation records are not available for this CVE.

References

twcert.org.tw / tw/cp-132-4521-a4fd8-1.html
Third Party Advisory