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CVE-2018-6835

31
FAUCET Score

CVE-2018-6835 describes a critical vulnerability in Etherpad Lite versions prior to v1.6.3, specifically within the node/hooks/express/apicalls.js component, where improper handling of JSONP allows remote attackers to bypass access restrictions. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network without authentication or user interaction, leading to high impacts on confidentiality, integrity, and availability. Despite its critical severity and high FAUCET Risk Score, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.6.3CPE matchmatch criteria
cpe:2.3:a:etherpad:etherpad:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.29%
Probability of exploitation in next 30 days
EPSS Percentile
81.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0229 is in the 71st percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: ep_etherpad-liteFixed in: 1.6.3

Vendor Advisories (1)

npmGHSA-mvmv-rq2j-97p2critical

Etherpad Lite Access Restriction Bypass

May 13, 2022

References

github.com / ether/etherpad-lite/commit/626e58cc5af1db3691b41fca7b06c28ea43141b1
PatchThird Party Advisory
github.com / ether/etherpad-lite/releases/tag/1.6.3
Release NotesThird Party Advisory