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CVE-2018-5753

36
FAUCET Score

CVE-2018-5753 describes a vulnerability in Open-Xchange OX App Suite versions prior to 7.6.3-rev31, 7.8.2-rev31, 7.8.3-rev41, and 7.8.4-rev20, allowing remote attackers to spoof email origins. This medium severity vulnerability (CVSS 6.5) has a low attack complexity and can lead to high integrity impact, as attackers can manipulate the "From" or "Sender" address using Unicode characters. While there is no evidence of active exploitation, an ExploitDB entry exists (EDB-44881), though community discussion and media coverage are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
<= 7.6.3CPE matchmatch criteria
cpe:2.3:a:open-xchange:open-xchange_appsuite:*:*:*:*:*:*:*:*
7.6.3CPE matchmatch criteria
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev14:*:*:*:*:*:*
7.6.3CPE matchmatch criteria
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev15:*:*:*:*:*:*
7.6.3CPE matchmatch criteria
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev16:*:*:*:*:*:*
7.6.3CPE matchmatch criteria
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev17:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
8.39%
Probability of exploitation in next 30 days
EPSS Percentile
94.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-44881 · Jun 12, 2018
This CVE's current EPSS score of 0.0839 is in the 98th percentile among its peer group of 21,957 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 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/148118/OX-App-Suite-7.8.4-XSS-Privilege-Management-SSRF-Traversal.html
ExploitThird Party AdvisoryVDB Entry
seclists.org / fulldisclosure/2018/Jun/23
ExploitMailing ListThird Party Advisory
exploit-db.com / exploits/44881
ExploitThird Party AdvisoryVDB Entry