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CVE-2018-1000834

26
FAUCET Score

CVE-2018-1000834 is a critical XML External Entity (XXE) vulnerability affecting RuneLite versions up to 1.4.23. This flaw, found in the Man-in-the-Middle RuneScape services call, allows for severe impacts including confidential data disclosure, denial of service, Server-Side Request Forgery (SSRF), and port scanning. With a CVSS score of 9.0 (Critical), it presents a high attack complexity but requires no user interaction or privileges. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.4.23CPE matchmatch criteria
cpe:2.3:a:runelite:runelite:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.0CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.37%
Probability of exploitation in next 30 days
EPSS Percentile
69.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0137 is in the 62nd percentile among its peer group of 201 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.4 Reddit, 1.2 Bluesky, 0.9 Mastodon, and 2.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.8 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

0dd.zone / 2018/10/28/runelite-XXE-MitM
Third Party Advisory
github.com / runelite/runelite/issues/6160
Issue TrackingThird Party Advisory