bolt vulnerabilities

Products

• bolt/bolt 15
• bolt cms 5
• bolt/core 3
• cms 3

Latest bolt CVEs

Newest publication first

1. CVE-2026-71291 Bolt CMS Server-Side Template Injection via Unsandboxed allow_twig Field Rendering

   Published 2026-08-05

   High·CVSS 8.8 EPSS 0.55%

   Bolt CMS renders content field values through Twig's full application-level Environment with no SandboxExtension registered anywhere in the codebase. In src/Entity/Field.php, getTwigValue calls shouldBeRenderedAsTwig, which gates rendering only on the field definition's allow_twi...

2. CVE-2026-11511 Bolt CMS HTML Attribute TextType.php HTML injection

   Published 2026-06-08

   Medium·CVSS 5.1 EPSS 0.19%

   A weakness has been identified in Bolt CMS up to 3.7.5. This vulnerability affects unknown code of the file src/Storage/Field/Type/TextType.php of the component HTML Attribute Handler. Executing a manipulation of the argument style can lead to HTML injection. It is possible to la...

3. CVE-2025-34086 Bolt CMS Authenticated Remote Code Execution via Profile Injection and File Rename

   Published 2025-07-03

   High·CVSS 7.5 EPSS 4.3% Framework module Public exploit

   Bolt CMS versions 3.7.0 and earlier contain a chain of vulnerabilities that together allow an authenticated user to achieve remote code execution. A user with valid credentials can inject arbitrary PHP code into the displayname field of the user profile, which is rendered unsanit...

4. CVE-2024-7300 Bolt CMS Showcase Creation showcases cross site scripting

   Published 2024-07-31

   Medium·CVSS 5.3 EPSS 0.40%

   A vulnerability classified as problematic has been found in Bolt CMS 3.7.1. Affected is an unknown function of the file /bolt/editcontent/showcases of the component Showcase Creation Handler. The manipulation of the argument title/textarea leads to cross site scripting. It is pos...

5. CVE-2024-7299 Bolt CMS Entry Preview page cross site scripting

   Published 2024-07-31

   Medium·CVSS 5.3 EPSS 0.39%

   ** UNSUPPORTED WHEN ASSIGNED ** A vulnerability was found in Bolt CMS 3.7.1. It has been rated as problematic. This issue affects some unknown processing of the file /preview/page of the component Entry Preview Handler. The manipulation of the argument body leads to cross site sc...

6. CVE-2022-36532 Bolt CMS contains a vulnerability in version 5.1.12 and below that allows an authenticated user with the ROLE_EDITOR privileges to upload and rename a malicious file to achieve remote code execution.

   Published 2022-09-16

   High·CVSS 8.8 EPSS 25.6%

   Bolt CMS contains a vulnerability in version 5.1.12 and below that allows an authenticated user with the ROLE_EDITOR privileges to upload and rename a malicious file to achieve remote code execution.

7. CVE-2021-40219 Code Injection in Bolt CMS

   Published 2022-04-11

   High·CVSS 8.8 EPSS 3.4% PoC

   Bolt CMS <= 4.2 is vulnerable to Remote Code Execution. Unsafe theme rendering allows an authenticated attacker to edit theme to inject server-side template injection that leads to remote code execution.

8. CVE-2021-27367 Path traversal in bolt/core

   Published 2021-02-17

   High·CVSS 7.5 EPSS 1.8%

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

9. CVE-2020-28925 OS Command injection in Bolt

   Published 2020-12-30

   Medium·CVSS 5.3 EPSS 1.1%

   Bolt before 3.7.2 does not restrict filter options in a Request in the Twig context, and is therefore inconsistent with the "How to Harden Your PHP for Better Security" guidance.

10. CVE-2020-4041 The filename of uploaded files vulnerable to stored XSS in Bolt CMS

    Published 2020-06-08

    Medium·CVSS 6.1 EPSS 2.1% Public exploit

    In Bolt CMS before version 3.7.1, the filename of uploaded files was vulnerable to stored XSS. It is not possible to inject javascript code in the file name when creating/uploading the file. But, once created/uploaded, it can be renamed to inject the payload in it. Additionally,...

11. CVE-2020-4040 CSRF issue on preview pages in Bolt CMS

    Published 2020-06-08

    Medium·CVSS 4.3 EPSS 1.8% Public exploit

    Bolt CMS before version 3.7.1 lacked CSRF protection in the preview generating endpoint. Previews are intended to be generated by the admins, developers, chief-editors, and editors, who are authorized to create content in the application. But due to lack of proper CSRF protection...

12. CVE-2019-9553 Bolt Cross-site Scripting via the slug, teaser or title parameters

    Published 2019-12-31

    Medium·CVSS 6.1 EPSS 1.8% Public exploit

    Bolt 3.6.4 has XSS via the slug, teaser, or title parameter to editcontent/pages, a related issue to CVE-2017-11128 and CVE-2018-19933.

13. CVE-2019-15485 Cross-site Scripting in Bolt

    Published 2019-08-23

    Medium·CVSS 6.1 EPSS 0.86%

    Bolt before 3.6.10 has XSS via createFolder or createFile in Controller/Async/FilesystemManager.php.

14. CVE-2019-15484 Bolt Cross-site Scripting (XSS) via an image's alt or title field

    Published 2019-08-23

    Medium·CVSS 6.1 EPSS 0.86%

    Bolt before 3.6.10 has XSS via an image's alt or title field.

15. CVE-2019-15483 Bolt Cross-site Scripting (XSS) via a title that is mishandled in the system log

    Published 2019-08-23

    Medium·CVSS 6.1 EPSS 0.86%

    Bolt before 3.6.10 has XSS via a title that is mishandled in the system log.

16. CVE-2019-10874 Bolt Cross Site Request Forgery (CSRF)

    Published 2019-04-05

    High·CVSS 8.8 EPSS 4.5% Public exploit

    Cross Site Request Forgery (CSRF) in the bolt/upload File Upload feature in Bolt CMS 3.6.6 allows remote attackers to execute arbitrary code by uploading a JavaScript file to include executable extensions in the file/edit/config/config.yml configuration file.

17. CVE-2019-9185 Bolt Unrestricted Upload of File with Dangerous Type

    Published 2019-03-07

    High·CVSS 8.8 EPSS 2.7%

    Controller/Async/FilesystemManager.php in the filemanager in Bolt before 3.6.5 allows remote attackers to execute arbitrary PHP code by renaming a previously uploaded file to have a .php extension.

18. CVE-2018-19933 Bolt Cross-site Scripting (XSS) via text input click preview button

    Published 2018-12-17

    Medium·CVSS 6.1 EPSS 3.5% Public exploit

    Bolt CMS <3.6.2 allows XSS via text input click preview button as demonstrated by the Title field of a Configured and New Entry.

19. CVE-2017-16754 Bolt Improper Access Control

    Published 2017-11-09

    Medium·CVSS 5.3 EPSS 1.8%

    Bolt before 3.3.6 does not properly restrict access to _profiler routes, related to EventListener/ProfilerListener.php and Provider/EventListenerServiceProvider.php.

20. CVE-2017-11127 Bolt CMS Stored XSS

    Published 2017-07-17

    Medium·CVSS 5.4 EPSS 0.55%

    Bolt CMS 3.2.14 allows stored XSS by uploading an SVG document with a "Content-Type: image/svg+xml" header.

21. CVE-2017-11128 Bolt stored Cross-site Scripting (XSS)

    Published 2017-07-17

    Medium·CVSS 5.4 EPSS 0.55%

    Bolt CMS 3.2.14 allows stored XSS via text input, as demonstrated by the Title field of a New Entry.

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.