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CVE-2020-12827

24
FAUCET Score

CVE-2020-12827 describes a path traversal vulnerability in MJML versions prior to 4.6.3, specifically when processing the mj-include directive. This vulnerability has a CVSS score of 7.2 (HIGH), indicating it can be exploited remotely with low attack complexity, potentially leading to information disclosure and denial of service. Despite its severity, 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
< 4.6.3CPE matchmatch criteria
cpe:2.3:a:mjml:mjml:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.2HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.66%
Probability of exploitation in next 30 days
EPSS Percentile
84.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0266 is in the 72nd percentile among its peer group of 51,485 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 (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: mjmlFixed in: 4.6.3

Vendor Advisories (1)

npmGHSA-4hch-r9xf-6vfrhigh

MJML vulnerable to path traversal

May 24, 2022

References

packetstormsecurity.com / files/158111/MJML-4.6.2-Path-Traversal.html
ExploitThird Party AdvisoryVDB Entry
seclists.org / fulldisclosure/2020/Jun/23
ExploitMailing ListThird Party Advisory
github.com / mjmlio/mjml/commit/30e29ed2cdaec8684d60a6d12ea07b611c765a12
PatchThird Party Advisory
github.com / mjmlio/mjml/releases/tag/v4.6.3
Release NotesThird Party Advisory
mjml.io / community
Vendor Advisory
rcesecurity.com
Broken Link
twitter.com / mjmlio
Third Party Advisory