MEDIUM
CVE-2018-11563
NVD-CWE-noinfoPublished: July 8, 2019· Updated: Jun 17, 2026
4.6
CVSS v3.1
Official Description
An issue was discovered in Open Ticket Request System (OTRS) 6.0.x through 6.0.7. A carefully constructed email could be used to inject and execute arbitrary stylesheet or JavaScript code in a logged in customer's browser in the context of the OTRS customer panel application.
Technical Analysis
CVE-2018-11563 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (8)
→
https://community.otrs.com/security-advisory-2018-02-security-update-for-otrs-framework/Patch · Vendor Advisory
→
https://lists.debian.org/debian-lts-announce/2019/08/msg00018.htmlMailing List · Third Party Advisory
→
https://lists.otrs.org/pipermail/announce/2018/000720.htmlVendor Advisory
→
https://www.otrs.com/category/release-and-security-notes-en/Release Notes · Vendor Advisory
→
https://community.otrs.com/security-advisory-2018-02-security-update-for-otrs-framework/Patch · Vendor Advisory
→
https://lists.debian.org/debian-lts-announce/2019/08/msg00018.htmlMailing List · Third Party Advisory
→
https://lists.otrs.org/pipermail/announce/2018/000720.htmlVendor Advisory
→
https://www.otrs.com/category/release-and-security-notes-en/Release Notes · Vendor Advisory
Quick Facts
CVE IDCVE-2018-11563
CVSS Score4.6 / 10
SeverityMEDIUM
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected2 vendor(s)
PublishedJul 8, 2019
Related CVEs (NVD-CWE-noinfo)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2018-11563 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.