Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-27367

23
FAUCET Score

CVE-2021-27367 describes a directory traversal vulnerability in Bolt CMS versions prior to 4.1.13, specifically within the FileEditController.php and FilemanagerController.php components. This flaw allows an unauthenticated attacker to read arbitrary files on the server, rated as High severity with a CVSS score of 7.5 due to its low attack complexity and high confidentiality impact. While no public exploits, Metasploit modules, or Nuclei templates are currently available, and there is no evidence of active exploitation or significant community discussion, organizations using affected Bolt CMS versions should prioritize patching to mitigate this risk.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.1.13CPE matchmatch criteria
cpe:2.3:a:boltcms:bolt:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
1.75%
Probability of exploitation in next 30 days
EPSS Percentile
75.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0175 is in the 58th 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 (4)

composerpatch availablevia ghsa
Product: bolt/coreFixed in: 4.1.13
github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: 19642-16823
microsoftpatch availablevia msrc
Product: cbl2 bolt on CBL Mariner 2.0

Vendor Advisories (2)

composerGHSA-q88g-qx42-xfrhhigh

Path traversal in bolt/core

Feb 18, 2021
microsoft2021-Feb/CVE-2021-27367Important

Controller/Backend/FileEditController.php and Controller/Backend/FilemanagerController.php in Bolt before 4.1.13 allow Directory Traversal.

Feb 9, 2021

References

github.com / bolt/core/pull/2371
PatchThird Party Advisory
github.com / bolt/core/releases/tag/4.1.13
Release NotesThird Party Advisory