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CVE-2018-0687

22
FAUCET Score

CVE-2018-0687 is a cross-site scripting (XSS) vulnerability affecting Denbun by NEOJAPAN Inc. (POP version V3.3P R4.0 and earlier, IMAP version V3.3I R4.0 and earlier). This medium-severity vulnerability (CVSS 6.1) allows remote attackers to inject arbitrary web script or HTML through unspecified vectors, requiring user interaction. While there is no evidence of active exploitation, no public exploit code, and minimal community discussion, organizations using affected Denbun versions should be aware of this potential risk.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.3i_r4.0CPE matchmatch criteria
cpe:2.3:a:neo:debun_imap:*:*:*:*:*:*:*:*
<= 3.3p_r4.0CPE matchmatch criteria
cpe:2.3:a:neo:debun_pop:*:*:*:*:*:*:*:*

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
1.04%
Probability of exploitation in next 30 days
EPSS Percentile
60.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0104 is in the 73rd 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

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

jvn.jp / en/jp/JVN00344155/index.html
Third Party Advisory
denbun.com / en/imap/support/security/181003.html
Vendor Advisory
denbun.com / en/pop/support/security/181003.html
Vendor Advisory