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CVE-2018-1340

25
FAUCET Score

CVE-2018-1340 describes a vulnerability in Apache Guacamole versions prior to 1.0.0 where the session token cookie lacked the "secure" flag. This oversight could enable an attacker performing network eavesdropping to intercept a user's session token if unencrypted HTTP requests were made to the same domain. The vulnerability carries a CVSS score of 7.5 (HIGH), indicating a high potential for confidentiality impact without requiring user interaction or complex attack conditions. Despite its severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.9.14CPE matchmatch criteria
cpe:2.3:a:apache:guacamole:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.10%
Probability of exploitation in next 30 days
EPSS Percentile
79.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0210 is in the 64th percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

mavenpatch availablevia ghsa
Product: org.apache.guacamole:guacamole-commonFixed in: 1.0.0

Vendor Advisories (1)

mavenGHSA-wr7r-vg3c-54r5high

Missing Encryption of Sensitive Data in Apache Guacamole

May 13, 2022

References

lists.apache.org / thread.html/af1632e13dd9acf7537546660cae9143cbb10fdd2f9bb0832a690979%40%3Cannounce.guacamole.apache.org%3E
securityfocus.com / bid/106768
Third Party Advisory