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CVE-2021-27367

Path traversal in bolt/core

7.5 HighFix available

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

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

1.75%Up 1.1 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

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

Record
CVE-2021-27367
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness
CWE-22
Updated
2026-11-02
CVE List No score

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

Record
CVE-2021-27367
Updated
2026-11-02
EUVDEUVD-2021-0567 No score

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

Record
EUVD-2021-0567
Updated
2026-11-03
GitHub AdvisoriesGHSA-q88g-qx42-xfrh No score

Path traversal in bolt/core

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

Record
GHSA-q88g-qx42-xfrh
Weakness
CWE-22
Updated
2026-11-02
OSV 7.5

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

Record
CVE-2021-27367
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVGHSA-q88g-qx42-xfrh No score

Path traversal in bolt/core

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

Record
GHSA-q88g-qx42-xfrh
Weakness
CWE-22
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
bolt/core
Packagist
before 4.1.13
4.1.13
bolt/core
Packagist
before 4.1.13, plus listed versions
1.0.0-alpha14.0.04.0.0-alpha34.0.0-beta.14.0.0-beta.1.1
Show 45 moreShow less
4.0.0-beta.1.24.0.0-beta.1.34.0.0-beta.1.44.0.0-beta.1.54.0.0-beta.1.64.0.0-beta.1.74.0.0-beta.1.84.0.0-beta.24.0.0-beta.2.14.0.0-beta.2.104.0.0-beta.2.24.0.0-beta.2.34.0.0-beta.2.44.0.0-beta.2.54.0.0-beta.2.64.0.0-beta.2.74.0.0-beta.2.84.0.0-beta.2.94.0.0-beta.34.0.0-beta.3.14.0.0-beta.3.24.0.0-beta.3.34.0.0-beta.3.44.0.0-beta.3.54.0.0-beta.3.64.0.0-beta.3.74.0.0-beta.3.84.0.0-beta.44.0.0-beta.4.14.0.0-beta.4.24.0.0-beta.4.34.0.0-beta.4.44.0.0-beta.4.54.0.0-beta.4.64.0.0-beta.54.0.0-beta.5.14.0.0-beta.5.24.0.0-beta.5.34.0.0-beta.5.44.0.0-beta.5.54.0.0-beta.5.64.0.0-beta.5.74.0.0-beta.5.84.0.0-beta.5.94.0.0-rc.1
4.1.13

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-27367 is a high vulnerability (CVSS 7.5) in Boltcms Bolt, published February 17, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.75%, the 77th percentile. Fixed in bolt/core 4.1.13.

References

This page doesn't list everything

Left out here: 54 versions. The JSON record has them.

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