HOMEVULNERABILITIESCVE-2018-17997
MEDIUMPOC

CVE-2018-17997

CWE-79Published: March 21, 2019· Updated: Jun 17, 2026

6.1
CVSS v3.1

Official Description

LayerBB 1.1.1 allows XSS via the titles of conversations (PMs).

NVD Source

Technical Analysis

CVE-2018-17997 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

A proof-of-concept (PoC) exploit exists for CVE-2018-17997. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeChanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected Vendors & Products

layerbb1 product(s)
layerbb
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (6)

https://www.exploit-db.com/exploits/46079/Exploit · Third Party Advisory · VDB Entry
https://www.exploit-db.com/exploits/46079/Exploit · Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2018-17997
CVSS Score6.1 / 10
SeverityMEDIUM
WeaknessCWE-79
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedMar 21, 2019

Related CVEs (CWE-79)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2018-17997 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. CVE data is provided under the NVD usage policy.