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CVE-2018-7703

30
FAUCET Score

CVE-2018-7703 describes a Cross-site Scripting (XSS) vulnerability in SecurEnvoy SecurMail versions prior to 9.2.501, allowing remote attackers to inject malicious web script or HTML through the mailboxid parameter in getmessage.exe. This vulnerability carries a CVSS score of 6.1 (MEDIUM), indicating a low attack complexity and requiring user interaction, with potential impacts on confidentiality and integrity. While there is no evidence of active exploitation (not in KEV), public exploit code exists on ExploitDB, and it has garnered some community discussion and media coverage, suggesting awareness within the security community.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.2.501CPE matchmatch criteria
cpe:2.3:a:securenvoy:securmail:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.01%
Probability of exploitation in next 30 days
EPSS Percentile
89.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-44285 · Mar 13, 2018
This CVE's current EPSS score of 0.0401 is in the 95th percentile among its peer group of 26,219 CVEs.

Social Chatter

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

Media Mentions

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

seclists.org / fulldisclosure/2018/Mar/29
ExploitMailing ListThird Party Advisory
exploit-db.com / exploits/44285
ExploitThird Party AdvisoryVDB Entry
sec-consult.com / en/blog/advisories/multiple-critical-vulnerabilities-in-securenvoy-securmail/index.html
ExploitThird Party Advisory