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CVE-2018-17567

24
FAUCET Score

CVE-2018-17567 is a high-severity arbitrary file access vulnerability affecting Jekyll versions up to 3.6.2, 3.7.3, and 3.8.3. Attackers can exploit this by specifying a symlink in the "include" key of the "_config.yml" file, potentially leading to unauthorized disclosure of sensitive information. The CVSS score is 7.5, indicating a network-exploitable vulnerability with low attack complexity and high confidentiality impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.6.2CPE matchmatch criteria
cpe:2.3:a:jekyllrb:jekyll:*:*:*:*:*:*:*:*
>= 3.7.0, <= 3.7.3CPE matchmatch criteria
cpe:2.3:a:jekyllrb:jekyll:*:*:*:*:*:*:*:*
>= 3.8.0, <= 3.8.3CPE matchmatch criteria
cpe:2.3:a:jekyllrb:jekyll:*:*:*:*:*:*:*:*

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
2.17%
Probability of exploitation in next 30 days
EPSS Percentile
80.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0217 is in the 65th percentile among its peer group of 51,553 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 (4)

github_advisorypatch availablevia nvd_reference
View patch
rubygemspatch availablevia ghsa
Product: jekyllFixed in: 3.6.3
rubygemspatch availablevia ghsa
Product: jekyllFixed in: 3.7.4
rubygemspatch availablevia ghsa
Product: jekyllFixed in: 3.8.4

Vendor Advisories (1)

rubygemsGHSA-4xjh-m3qx-49wchigh

Jekyll allows attackers to access arbitrary files by specifying a symlink

Sep 28, 2018

References

github.com / jekyll/jekyll/pull/7224
PatchThird Party Advisory
jekyllrb.com / news/2018/09/19/security-fixes-for-3-6-3-7-3-8
PatchVendor Advisory
lists.apache.org / thread.html/71da391f584b2fb301d2df0e491b279d87287e2fb4b11309f04ad984%40%3Ccommits.accumulo.apache.org%3E